{"id":62577,"date":"2025-09-17T11:50:29","date_gmt":"2025-09-17T09:50:29","guid":{"rendered":"https:\/\/thevintageur.com\/?post_type=product&#038;p=62577"},"modified":"2025-09-17T11:55:59","modified_gmt":"2025-09-17T09:55:59","slug":"seiko-cronografo-al-quarzo-7a28-7050-rotante-metallo-cassa-in-plastica-in-casa-7a28-movimento-degli-anni-80","status":"publish","type":"product","link":"https:\/\/thevintageur.com\/it\/shop\/seiko-chronograph-quartz-7a28-7050-rotating-metal-plastic-case-in-house-7a28-movement-from-the-80s\/","title":{"rendered":"Cronografo Seiko al quarzo 7A28-7050 con cassa rotante in metallo\/plastica Movimento 7A28 in-house degli anni '80"},"content":{"rendered":"<p><b data-removefontsize=\"true\" data-originalcomputedfontsize=\"13\">SPECIFICHE<\/b><\/p>\n<p data-removefontsize=\"true\" data-originalcomputedfontsize=\"13\"><span data-removefontsize=\"true\" data-originalcomputedfontsize=\"13\">Futuristico cronografo Seiko al quarzo 7A28-7050 con cassa girevole in metallo e plastica, alimentato dal movimento Seiko 7A28, degli anni Ottanta.<\/span><\/p>\n<p>Cassa in metallo e plastica di 44 mm<br \/>\nBracciale originale integrato in acciaio<br \/>\nPulsanti originali<br \/>\nCorona originale<br \/>\nCristallo minerale originale<br \/>\nMovimento cronografo a cristalli di quarzo Seiko 7A28<\/p>\n<p><b data-removefontsize=\"true\" data-originalcomputedfontsize=\"13\">ANALISI<\/b><\/p>\n<p>Per descrivere questo interessantissimo e unico Seiko, dobbiamo iniziare dal movimento. Nel 1983, Seiko ha rivoluzionato il movimento con il 7A28: il primo cronografo analogico al quarzo della storia. Era costruito su una base che non includeva alcun componente in plastica ed era progettato intorno a 15 rubini. Questa base di alta qualit\u00e0 \u00e8 stata successivamente modificata e aggiunta, come la data e il giorno (movimento 7A38) e, pi\u00f9 tardi, la complicazione delle fasi lunari (movimento 7A48). La sua caratteristica principale \u00e8 un cronografo in grado di misurare gli intervalli di tempo con una precisione di un ventesimo di secondo (quadrante a ore 12); il quadrante a ore 3 registra i secondi continui, mentre il quadrante a ore 6 registra la somma dei minuti fino a 30. Un'altra particolarit\u00e0 di questo movimento \u00e8 la funzione \"sdoppiante\": avviando il cronografo con il pulsante rettangolare arancione a ore 11, il cronografo pu\u00f2 essere fermato e messo in pausa tenendo premuto il pulsante rettangolare arancione a ore 7. Rilasciando il pulsante, il cronografo si riavvia. L'azzeramento si effettua con il pulsante rettangolare nero a ore 1. Tutte le indicazioni, compreso il promemoria per l'azzeramento del cronografo, sono disponibili. Tutte le indicazioni, compreso il promemoria per stringere la corona, sono visualizzate su un anello di alluminio che funge da lunetta.<\/p>\n<p>Questo splendido cronografo Seiko ha un'altra particolarit\u00e0: la sua cassa, composta da metallo e da una spessa plastica nera esterna, pu\u00f2 essere ruotata di 360\u00b0 perch\u00e9 \u00e8 incernierata alla base del bracciale. Pu\u00f2 quindi ruotare liberamente di 60 scatti, consentendo di utilizzare e leggere l'ora in qualsiasi posizione.<\/p>\n<p>Il quadrante grigio ardesia presenta una texture superficiale di piccoli quadrati, che conferiscono movimento e tridimensionalit\u00e0 alla composizione, grazie anche al vetro Hardlex. Tutti i grafici sono realizzati con pasta luminosa. Le lancette delle ore e dei minuti hanno la forma di matite bianche con un incavo per la pasta luminosa.<\/p>\n<p>Questo orologio, progettato per gli sport motoristici, \u00e8 completato da un bellissimo bracciale integrato che si chiude con una fibbia che riporta la firma Speedmaster e il logo di un casco da corsa stilizzato.<\/p>","protected":false},"excerpt":{"rendered":"<p>SPECIFICATIONS Futuristic Seiko chronograph quartz 7A28-7050 with a metal and plastic rotating case and powered by the Seiko&hellip;<\/p>","protected":false},"featured_media":62578,"comment_status":"closed","ping_status":"closed","template":"","meta":[],"product_brand":[218],"product_cat":[234],"product_tag":[],"class_list":["post-62577","product","type-product","status-publish","has-post-thumbnail","product_brand-seiko","product_cat-watches","first","instock","taxable","shipping-taxable","purchasable","product-type-simple"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.3 (Yoast SEO v27.3) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Seiko Chronograph Quartz 7A28-7050 Rotating Metal\/Plastic Case In-House 7A28 Movement From the 80s - The Vintageur<\/title>\n<meta name=\"description\" content=\"SPECIFICATIONS Futuristic Seiko chronograph quartz 7A28-7050 with a metal and plastic rotating case and powered by the Seiko 7A28 movement, from the 1980s. Metal and plastic case measuring 44mm Original integrated steel bracelet Original pushers Original crown Original mineral crystal Seiko 7A28 quartz crystal chronograph movement  ANALYSIS  To describe this very interesting and unique Seiko, we must start with the movement. In 1983, Seiko revolutionized the movement with the 7A28: the first analog quartz chronograph in history. It was built on a base that did not include any plastic components and was designed around 15 jewels. This high-quality base was subsequently modified and added, such as the date and day (7A38 movement) and, later, the moon phase complication (7A48 movement). Its main feature is a chronograph capable of measuring intervals of time with an accuracy of one twentieth of a second (subdial at 12 o&#039;clock); the subdial at 3 o&#039;clock records continuous seconds, while the subdial at 6 o&#039;clock records the sum of minutes up to 30. Another special feature of this movement is its &quot;split&quot; function: by starting the chronograph using the orange rectangular button at 11 o&#039;clock, the chronograph can be stopped and paused by holding down the orange rectangular button at 7 o&#039;clock. Releasing the button restarts the chronograph. The reset is done using the black rectangular button at 1 o&#039;clock. All indications, including the reminder to tighten the crown, are displayed on an aluminum ring that serves as a bezel.  This stunning Seiko chronograph has yet another special feature: its case, composed of metal and a thick black plastic outer case, can be rotated 360\u00b0 because it is hinged at the base of the bracelet. It can therefore rotate freely through 60 clicks, allowing it to be used and read the time in any position.  The slate gray dial features a surface texture of small squares, which lend movement and a three-dimensionality to the composition, thanks also to the Hardlex crystal. All the graphics are made with luminous paste. The hour and minute hands are shaped like white pencils with a recess for the luminous paste.  This watch, designed for motorsports, is completed by a beautiful integrated bracelet that closes with a clasp featuring the Speedmaster signature and the logo of a stylized racing helmet.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/thevintageur.com\/it\/negozio\/seiko-cronografo-al-quarzo-7a28-7050-rotante-metallo-cassa-in-plastica-in-casa-7a28-movimento-degli-anni-80\/\" \/>\n<meta property=\"og:locale\" content=\"it_IT\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Seiko Chronograph Quartz 7A28-7050 Rotating Metal\/Plastic Case In-House 7A28 Movement From the 80s\" \/>\n<meta property=\"og:description\" content=\"SPECIFICATIONS Futuristic Seiko chronograph quartz 7A28-7050 with a metal and plastic rotating case and powered by the Seiko 7A28 movement, from the 1980s. Metal and plastic case measuring 44mm Original integrated steel bracelet Original pushers Original crown Original mineral crystal Seiko 7A28 quartz crystal chronograph movement  ANALYSIS  To describe this very interesting and unique Seiko, we must start with the movement. In 1983, Seiko revolutionized the movement with the 7A28: the first analog quartz chronograph in history. It was built on a base that did not include any plastic components and was designed around 15 jewels. This high-quality base was subsequently modified and added, such as the date and day (7A38 movement) and, later, the moon phase complication (7A48 movement). Its main feature is a chronograph capable of measuring intervals of time with an accuracy of one twentieth of a second (subdial at 12 o&#039;clock); the subdial at 3 o&#039;clock records continuous seconds, while the subdial at 6 o&#039;clock records the sum of minutes up to 30. Another special feature of this movement is its &quot;split&quot; function: by starting the chronograph using the orange rectangular button at 11 o&#039;clock, the chronograph can be stopped and paused by holding down the orange rectangular button at 7 o&#039;clock. Releasing the button restarts the chronograph. The reset is done using the black rectangular button at 1 o&#039;clock. All indications, including the reminder to tighten the crown, are displayed on an aluminum ring that serves as a bezel.  This stunning Seiko chronograph has yet another special feature: its case, composed of metal and a thick black plastic outer case, can be rotated 360\u00b0 because it is hinged at the base of the bracelet. It can therefore rotate freely through 60 clicks, allowing it to be used and read the time in any position.  The slate gray dial features a surface texture of small squares, which lend movement and a three-dimensionality to the composition, thanks also to the Hardlex crystal. All the graphics are made with luminous paste. The hour and minute hands are shaped like white pencils with a recess for the luminous paste.  This watch, designed for motorsports, is completed by a beautiful integrated bracelet that closes with a clasp featuring the Speedmaster signature and the logo of a stylized racing helmet.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/thevintageur.com\/it\/negozio\/seiko-cronografo-al-quarzo-7a28-7050-rotante-metallo-cassa-in-plastica-in-casa-7a28-movimento-degli-anni-80\/\" \/>\n<meta property=\"og:site_name\" content=\"The Vintageur\" \/>\n<meta property=\"article:modified_time\" content=\"2025-09-17T09:55:59+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/thevintageur.com\/wp-content\/uploads\/2025\/09\/2025-09-12-16-30-33-CS4-2.jpeg\" \/>\n\t<meta property=\"og:image:width\" content=\"2560\" \/>\n\t<meta property=\"og:image:height\" content=\"2560\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Prezzo\" \/>\n\t<meta name=\"twitter:data1\" content=\"1.350,00&nbsp;&euro;\" \/>\n\t<meta name=\"twitter:label2\" content=\"Disponibilit\u00e0\" \/>\n\t<meta name=\"twitter:data2\" content=\"In stock\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/thevintageur.com\\\/shop\\\/seiko-chronograph-quartz-7a28-7050-rotating-metal-plastic-case-in-house-7a28-movement-from-the-80s\\\/\",\"url\":\"https:\\\/\\\/thevintageur.com\\\/shop\\\/seiko-chronograph-quartz-7a28-7050-rotating-metal-plastic-case-in-house-7a28-movement-from-the-80s\\\/\",\"name\":\"Seiko Chronograph Quartz 7A28-7050 Rotating Metal\\\/Plastic Case In-House 7A28 Movement From the 80s - The Vintageur\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/thevintageur.com\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/thevintageur.com\\\/shop\\\/seiko-chronograph-quartz-7a28-7050-rotating-metal-plastic-case-in-house-7a28-movement-from-the-80s\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/thevintageur.com\\\/shop\\\/seiko-chronograph-quartz-7a28-7050-rotating-metal-plastic-case-in-house-7a28-movement-from-the-80s\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/thevintageur.com\\\/wp-content\\\/uploads\\\/2025\\\/09\\\/2025-09-12-16-30-33-CS4-2.jpeg\",\"datePublished\":\"2025-09-17T09:50:29+00:00\",\"dateModified\":\"2025-09-17T09:55:59+00:00\",\"description\":\"SPECIFICATIONS Futuristic Seiko chronograph quartz 7A28-7050 with a metal and plastic rotating case and powered by the Seiko 7A28 movement, from the 1980s. Metal and plastic case measuring 44mm Original integrated steel bracelet Original pushers Original crown Original mineral crystal Seiko 7A28 quartz crystal chronograph movement ANALYSIS To describe this very interesting and unique Seiko, we must start with the movement. In 1983, Seiko revolutionized the movement with the 7A28: the first analog quartz chronograph in history. It was built on a base that did not include any plastic components and was designed around 15 jewels. This high-quality base was subsequently modified and added, such as the date and day (7A38 movement) and, later, the moon phase complication (7A48 movement). Its main feature is a chronograph capable of measuring intervals of time with an accuracy of one twentieth of a second (subdial at 12 o'clock); the subdial at 3 o'clock records continuous seconds, while the subdial at 6 o'clock records the sum of minutes up to 30. Another special feature of this movement is its \\\"split\\\" function: by starting the chronograph using the orange rectangular button at 11 o'clock, the chronograph can be stopped and paused by holding down the orange rectangular button at 7 o'clock. Releasing the button restarts the chronograph. The reset is done using the black rectangular button at 1 o'clock. All indications, including the reminder to tighten the crown, are displayed on an aluminum ring that serves as a bezel. This stunning Seiko chronograph has yet another special feature: its case, composed of metal and a thick black plastic outer case, can be rotated 360\u00b0 because it is hinged at the base of the bracelet. It can therefore rotate freely through 60 clicks, allowing it to be used and read the time in any position. The slate gray dial features a surface texture of small squares, which lend movement and a three-dimensionality to the composition, thanks also to the Hardlex crystal. All the graphics are made with luminous paste. The hour and minute hands are shaped like white pencils with a recess for the luminous paste. This watch, designed for motorsports, is completed by a beautiful integrated bracelet that closes with a clasp featuring the Speedmaster signature and the logo of a stylized racing helmet.\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/thevintageur.com\\\/shop\\\/seiko-chronograph-quartz-7a28-7050-rotating-metal-plastic-case-in-house-7a28-movement-from-the-80s\\\/#breadcrumb\"},\"inLanguage\":\"it-IT\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/thevintageur.com\\\/shop\\\/seiko-chronograph-quartz-7a28-7050-rotating-metal-plastic-case-in-house-7a28-movement-from-the-80s\\\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"it-IT\",\"@id\":\"https:\\\/\\\/thevintageur.com\\\/shop\\\/seiko-chronograph-quartz-7a28-7050-rotating-metal-plastic-case-in-house-7a28-movement-from-the-80s\\\/#primaryimage\",\"url\":\"https:\\\/\\\/thevintageur.com\\\/wp-content\\\/uploads\\\/2025\\\/09\\\/2025-09-12-16-30-33-CS4-2.jpeg\",\"contentUrl\":\"https:\\\/\\\/thevintageur.com\\\/wp-content\\\/uploads\\\/2025\\\/09\\\/2025-09-12-16-30-33-CS4-2.jpeg\",\"width\":2560,\"height\":2560},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/thevintageur.com\\\/shop\\\/seiko-chronograph-quartz-7a28-7050-rotating-metal-plastic-case-in-house-7a28-movement-from-the-80s\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/thevintageur.com\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Shop\",\"item\":\"https:\\\/\\\/thevintageur.com\\\/it\\\/negozio\\\/\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Seiko Chronograph Quartz 7A28-7050 Rotating Metal\\\/Plastic Case In-House 7A28 Movement From the 80s\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/thevintageur.com\\\/#website\",\"url\":\"https:\\\/\\\/thevintageur.com\\\/\",\"name\":\"The Vintageur\",\"description\":\"Your bespoke watches collection\",\"publisher\":{\"@id\":\"https:\\\/\\\/thevintageur.com\\\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/thevintageur.com\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"it-IT\"},{\"@type\":\"Organization\",\"@id\":\"https:\\\/\\\/thevintageur.com\\\/#organization\",\"name\":\"The Vintageur\",\"url\":\"https:\\\/\\\/thevintageur.com\\\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"it-IT\",\"@id\":\"https:\\\/\\\/thevintageur.com\\\/#\\\/schema\\\/logo\\\/image\\\/\",\"url\":\"https:\\\/\\\/thevintageur.com\\\/wp-content\\\/uploads\\\/2023\\\/12\\\/logo-dark.svg\",\"contentUrl\":\"https:\\\/\\\/thevintageur.com\\\/wp-content\\\/uploads\\\/2023\\\/12\\\/logo-dark.svg\",\"width\":392,\"height\":28,\"caption\":\"The Vintageur\"},\"image\":{\"@id\":\"https:\\\/\\\/thevintageur.com\\\/#\\\/schema\\\/logo\\\/image\\\/\"},\"sameAs\":[\"https:\\\/\\\/www.instagram.com\\\/vintageur\\\/\"]}]}<\/script>\n<meta property=\"product:price:amount\" content=\"1350.00\" \/>\n<meta property=\"product:price:currency\" content=\"EUR\" \/>\n<meta property=\"og:availability\" content=\"instock\" \/>\n<meta property=\"product:availability\" content=\"instock\" \/>\n<meta property=\"product:retailer_item_id\" content=\"839\" \/>\n<meta property=\"product:condition\" content=\"new\" \/>\n<!-- \/ Yoast SEO Premium plugin. -->","yoast_head_json":{"title":"Cronografo Seiko al quarzo 7A28-7050 con cassa girevole in metallo\/plastica e movimento 7A28 in-house degli anni '80 - Il Vintageur","description":"SPECIFICHE Futuristico cronografo Seiko al quarzo 7A28-7050 con cassa rotante in metallo e plastica e alimentato dal movimento Seiko 7A28, degli anni '80. Cassa in metallo e plastica di 44 mm Bracciale originale integrato in acciaio Pulsanti originali Corona originale Vetro minerale originale Movimento cronografo al quarzo Seiko 7A28 ANALISI Per descrivere questo interessantissimo e unico Seiko, dobbiamo partire dal movimento. Nel 1983, Seiko ha rivoluzionato il movimento con il 7A28: il primo cronografo analogico al quarzo della storia. Era costruito su una base che non includeva alcun componente in plastica ed era progettato intorno a 15 rubini. Questa base di alta qualit\u00e0 \u00e8 stata successivamente modificata e aggiunta, come la data e il giorno (movimento 7A38) e, pi\u00f9 tardi, la complicazione delle fasi lunari (movimento 7A48). La sua caratteristica principale \u00e8 un cronografo in grado di misurare gli intervalli di tempo con una precisione di un ventesimo di secondo (quadrante a ore 12); il quadrante a ore 3 registra i secondi continui, mentre il quadrante a ore 6 registra la somma dei minuti fino a 30. Un'altra particolarit\u00e0 di questo movimento \u00e8 la funzione \"sdoppiante\": avviando il cronografo con il pulsante rettangolare arancione a ore 11, il cronografo pu\u00f2 essere fermato e messo in pausa tenendo premuto il pulsante rettangolare arancione a ore 7. Rilasciando il pulsante, il cronografo si riavvia. L'azzeramento si effettua con il pulsante rettangolare nero a ore 1. Tutte le indicazioni, compreso il promemoria per l'azzeramento del cronografo, sono disponibili. Tutte le indicazioni, compreso il promemoria per stringere la corona, sono visualizzate su un anello di alluminio che funge da lunetta.  Questo splendido cronografo Seiko ha un'altra caratteristica speciale: la sua cassa, composta da metallo e da una spessa plastica nera esterna, pu\u00f2 essere ruotata di 360\u00b0 perch\u00e9 \u00e8 incernierata alla base del bracciale. Pu\u00f2 quindi ruotare liberamente di 60 scatti, consentendo di utilizzare e leggere l'ora in qualsiasi posizione.  Il quadrante grigio ardesia presenta una texture superficiale di piccoli quadrati, che conferiscono movimento e tridimensionalit\u00e0 alla composizione, grazie anche al vetro Hardlex. Tutti i grafici sono realizzati con pasta luminosa. Le lancette delle ore e dei minuti hanno la forma di matite bianche con un incavo per la pasta luminosa.  Questo orologio, progettato per gli sport motoristici, \u00e8 completato da un bellissimo bracciale integrato che si chiude con una fibbia che riporta la firma Speedmaster e il logo di un casco da corsa stilizzato.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/thevintageur.com\/it\/negozio\/seiko-cronografo-al-quarzo-7a28-7050-rotante-metallo-cassa-in-plastica-in-casa-7a28-movimento-degli-anni-80\/","og_locale":"it_IT","og_type":"article","og_title":"Seiko Chronograph Quartz 7A28-7050 Rotating Metal\/Plastic Case In-House 7A28 Movement From the 80s","og_description":"SPECIFICATIONS Futuristic Seiko chronograph quartz 7A28-7050 with a metal and plastic rotating case and powered by the Seiko 7A28 movement, from the 1980s. Metal and plastic case measuring 44mm Original integrated steel bracelet Original pushers Original crown Original mineral crystal Seiko 7A28 quartz crystal chronograph movement  ANALYSIS  To describe this very interesting and unique Seiko, we must start with the movement. In 1983, Seiko revolutionized the movement with the 7A28: the first analog quartz chronograph in history. It was built on a base that did not include any plastic components and was designed around 15 jewels. This high-quality base was subsequently modified and added, such as the date and day (7A38 movement) and, later, the moon phase complication (7A48 movement). Its main feature is a chronograph capable of measuring intervals of time with an accuracy of one twentieth of a second (subdial at 12 o'clock); the subdial at 3 o'clock records continuous seconds, while the subdial at 6 o'clock records the sum of minutes up to 30. Another special feature of this movement is its \"split\" function: by starting the chronograph using the orange rectangular button at 11 o'clock, the chronograph can be stopped and paused by holding down the orange rectangular button at 7 o'clock. Releasing the button restarts the chronograph. The reset is done using the black rectangular button at 1 o'clock. All indications, including the reminder to tighten the crown, are displayed on an aluminum ring that serves as a bezel.  This stunning Seiko chronograph has yet another special feature: its case, composed of metal and a thick black plastic outer case, can be rotated 360\u00b0 because it is hinged at the base of the bracelet. It can therefore rotate freely through 60 clicks, allowing it to be used and read the time in any position.  The slate gray dial features a surface texture of small squares, which lend movement and a three-dimensionality to the composition, thanks also to the Hardlex crystal. All the graphics are made with luminous paste. The hour and minute hands are shaped like white pencils with a recess for the luminous paste.  This watch, designed for motorsports, is completed by a beautiful integrated bracelet that closes with a clasp featuring the Speedmaster signature and the logo of a stylized racing helmet.","og_url":"https:\/\/thevintageur.com\/it\/negozio\/seiko-cronografo-al-quarzo-7a28-7050-rotante-metallo-cassa-in-plastica-in-casa-7a28-movimento-degli-anni-80\/","og_site_name":"The Vintageur","article_modified_time":"2025-09-17T09:55:59+00:00","og_image":[{"width":2560,"height":2560,"url":"https:\/\/thevintageur.com\/wp-content\/uploads\/2025\/09\/2025-09-12-16-30-33-CS4-2.jpeg","type":"image\/jpeg"}],"twitter_card":"summary_large_image","twitter_misc":{"Prezzo":"1.350,00&nbsp;&euro;","Disponibilit\u00e0":"In stock"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/thevintageur.com\/shop\/seiko-chronograph-quartz-7a28-7050-rotating-metal-plastic-case-in-house-7a28-movement-from-the-80s\/","url":"https:\/\/thevintageur.com\/shop\/seiko-chronograph-quartz-7a28-7050-rotating-metal-plastic-case-in-house-7a28-movement-from-the-80s\/","name":"Cronografo Seiko al quarzo 7A28-7050 con cassa girevole in metallo\/plastica e movimento 7A28 in-house degli anni '80 - Il Vintageur","isPartOf":{"@id":"https:\/\/thevintageur.com\/#website"},"primaryImageOfPage":{"@id":"https:\/\/thevintageur.com\/shop\/seiko-chronograph-quartz-7a28-7050-rotating-metal-plastic-case-in-house-7a28-movement-from-the-80s\/#primaryimage"},"image":{"@id":"https:\/\/thevintageur.com\/shop\/seiko-chronograph-quartz-7a28-7050-rotating-metal-plastic-case-in-house-7a28-movement-from-the-80s\/#primaryimage"},"thumbnailUrl":"https:\/\/thevintageur.com\/wp-content\/uploads\/2025\/09\/2025-09-12-16-30-33-CS4-2.jpeg","datePublished":"2025-09-17T09:50:29+00:00","dateModified":"2025-09-17T09:55:59+00:00","description":"SPECIFICHE Futuristico cronografo Seiko al quarzo 7A28-7050 con cassa rotante in metallo e plastica e alimentato dal movimento Seiko 7A28, degli anni '80. Cassa in metallo e plastica di 44 mm Bracciale originale integrato in acciaio Pulsanti originali Corona originale Vetro minerale originale Movimento cronografo al quarzo Seiko 7A28 ANALISI Per descrivere questo interessantissimo e unico Seiko, dobbiamo partire dal movimento. Nel 1983, Seiko ha rivoluzionato il movimento con il 7A28: il primo cronografo analogico al quarzo della storia. Era costruito su una base che non includeva alcun componente in plastica ed era progettato intorno a 15 rubini. Questa base di alta qualit\u00e0 \u00e8 stata successivamente modificata e aggiunta, come la data e il giorno (movimento 7A38) e, pi\u00f9 tardi, la complicazione delle fasi lunari (movimento 7A48). La sua caratteristica principale \u00e8 un cronografo in grado di misurare gli intervalli di tempo con una precisione di un ventesimo di secondo (quadrante a ore 12); il quadrante a ore 3 registra i secondi continui, mentre il quadrante a ore 6 registra la somma dei minuti fino a 30. Un'altra particolarit\u00e0 di questo movimento \u00e8 la funzione \"sdoppiante\": avviando il cronografo con il pulsante rettangolare arancione a ore 11, il cronografo pu\u00f2 essere fermato e messo in pausa tenendo premuto il pulsante rettangolare arancione a ore 7. Rilasciando il pulsante, il cronografo si riavvia. L'azzeramento si effettua con il pulsante rettangolare nero a ore 1. Tutte le indicazioni, compreso il promemoria per l'azzeramento del cronografo, sono disponibili. Tutte le indicazioni, compreso il promemoria per stringere la corona, sono visualizzate su un anello di alluminio che funge da lunetta. Questo splendido cronografo Seiko ha un'altra caratteristica speciale: la sua cassa, composta da metallo e da una spessa plastica nera esterna, pu\u00f2 essere ruotata di 360\u00b0 perch\u00e9 \u00e8 incernierata alla base del bracciale. Pu\u00f2 quindi ruotare liberamente di 60 scatti, consentendo di utilizzare e leggere l'ora in qualsiasi posizione. Il quadrante grigio ardesia presenta una texture superficiale di piccoli quadrati, che conferiscono movimento e tridimensionalit\u00e0 alla composizione, grazie anche al vetro Hardlex. Tutti i grafici sono realizzati con pasta luminosa. Le lancette delle ore e dei minuti hanno la forma di matite bianche con un incavo per la pasta luminosa. Questo orologio, progettato per gli sport motoristici, \u00e8 completato da un bellissimo bracciale integrato che si chiude con una fibbia che riporta la firma Speedmaster e il logo di un casco da corsa stilizzato.","breadcrumb":{"@id":"https:\/\/thevintageur.com\/shop\/seiko-chronograph-quartz-7a28-7050-rotating-metal-plastic-case-in-house-7a28-movement-from-the-80s\/#breadcrumb"},"inLanguage":"it-IT","potentialAction":[{"@type":"ReadAction","target":["https:\/\/thevintageur.com\/shop\/seiko-chronograph-quartz-7a28-7050-rotating-metal-plastic-case-in-house-7a28-movement-from-the-80s\/"]}]},{"@type":"ImageObject","inLanguage":"it-IT","@id":"https:\/\/thevintageur.com\/shop\/seiko-chronograph-quartz-7a28-7050-rotating-metal-plastic-case-in-house-7a28-movement-from-the-80s\/#primaryimage","url":"https:\/\/thevintageur.com\/wp-content\/uploads\/2025\/09\/2025-09-12-16-30-33-CS4-2.jpeg","contentUrl":"https:\/\/thevintageur.com\/wp-content\/uploads\/2025\/09\/2025-09-12-16-30-33-CS4-2.jpeg","width":2560,"height":2560},{"@type":"BreadcrumbList","@id":"https:\/\/thevintageur.com\/shop\/seiko-chronograph-quartz-7a28-7050-rotating-metal-plastic-case-in-house-7a28-movement-from-the-80s\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/thevintageur.com\/"},{"@type":"ListItem","position":2,"name":"Shop","item":"https:\/\/thevintageur.com\/it\/negozio\/"},{"@type":"ListItem","position":3,"name":"Seiko Chronograph Quartz 7A28-7050 Rotating Metal\/Plastic Case In-House 7A28 Movement From the 80s"}]},{"@type":"WebSite","@id":"https:\/\/thevintageur.com\/#website","url":"https:\/\/thevintageur.com\/","name":"Il Vintageur","description":"La vostra collezione di orologi su misura","publisher":{"@id":"https:\/\/thevintageur.com\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/thevintageur.com\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"it-IT"},{"@type":"Organization","@id":"https:\/\/thevintageur.com\/#organization","name":"Il Vintageur","url":"https:\/\/thevintageur.com\/","logo":{"@type":"ImageObject","inLanguage":"it-IT","@id":"https:\/\/thevintageur.com\/#\/schema\/logo\/image\/","url":"https:\/\/thevintageur.com\/wp-content\/uploads\/2023\/12\/logo-dark.svg","contentUrl":"https:\/\/thevintageur.com\/wp-content\/uploads\/2023\/12\/logo-dark.svg","width":392,"height":28,"caption":"The Vintageur"},"image":{"@id":"https:\/\/thevintageur.com\/#\/schema\/logo\/image\/"},"sameAs":["https:\/\/www.instagram.com\/vintageur\/"]}]},"product_price_amount":"1350.00","product_price_currency":"EUR","og_availability":"instock","product_availability":"instock","product_retailer_item_id":"839","product_condition":"new"},"_links":{"self":[{"href":"https:\/\/thevintageur.com\/it\/wp-json\/wp\/v2\/product\/62577","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/thevintageur.com\/it\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/thevintageur.com\/it\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/thevintageur.com\/it\/wp-json\/wp\/v2\/comments?post=62577"}],"version-history":[{"count":0,"href":"https:\/\/thevintageur.com\/it\/wp-json\/wp\/v2\/product\/62577\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/thevintageur.com\/it\/wp-json\/wp\/v2\/media\/62578"}],"wp:attachment":[{"href":"https:\/\/thevintageur.com\/it\/wp-json\/wp\/v2\/media?parent=62577"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/thevintageur.com\/it\/wp-json\/wp\/v2\/product_brand?post=62577"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/thevintageur.com\/it\/wp-json\/wp\/v2\/product_cat?post=62577"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/thevintageur.com\/it\/wp-json\/wp\/v2\/product_tag?post=62577"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}