{"id":820,"date":"2016-11-11T19:27:44","date_gmt":"2016-11-11T17:27:44","guid":{"rendered":"https:\/\/thevintageur.com\/?post_type=product&#038;p=820"},"modified":"2025-07-28T16:52:43","modified_gmt":"2025-07-28T14:52:43","slug":"omega-big-chrono-aviator-ot-741-as","status":"publish","type":"product","link":"https:\/\/thevintageur.com\/fr\/shop\/omega-big-chrono-aviator-ot-741-as\/","title":{"rendered":"Omega Chronographe \"Cadran Brevet\u00e9 S.G.D.G.\" Bo\u00eetier en or jaune 18KT Mouvement Omega \u00e0 remontage manuel 18\u2033 CHRO Des ann\u00e9es 1930"},"content":{"rendered":"<p class=\"selectable-text copyable-text x15bjb6t x1n2onr6\" dir=\"ltr\"><strong><span class=\"selectable-text copyable-text xkrh14z\">CARACT\u00c9RISTIQUES TECHNIQUES<\/span><\/strong><\/p>\n<p class=\"selectable-text copyable-text x15bjb6t x1n2onr6\" dir=\"ltr\"><span class=\"selectable-text copyable-text xkrh14z\">Exceptionnel chronographe Omega avec cadran en \u00e9mail brevet\u00e9, bo\u00eetier en or jaune 18 carats et mouvement CHRO 18\u2033, datant des ann\u00e9es 1930.<\/span><\/p>\n<p class=\"selectable-text copyable-text x15bjb6t x1n2onr6\" dir=\"ltr\"><span class=\"selectable-text copyable-text xkrh14z\">Bo\u00eetier en or jaune 18K de 45 mm<\/span><\/p>\n<p class=\"selectable-text copyable-text x15bjb6t x1n2onr6\" dir=\"ltr\"><span class=\"selectable-text copyable-text xkrh14z\">Cadran \u00e9maill\u00e9 multicolore<\/span><\/p>\n<p class=\"selectable-text copyable-text x15bjb6t x1n2onr6\" dir=\"ltr\"><span class=\"selectable-text copyable-text xkrh14z\">Fond de bo\u00eetier \u00e0 charni\u00e8re<\/span><\/p>\n<p class=\"selectable-text copyable-text x15bjb6t x1n2onr6\" dir=\"ltr\"><span class=\"selectable-text copyable-text xkrh14z\">Couronne originale<\/span><\/p>\n<p class=\"selectable-text copyable-text x15bjb6t x1n2onr6\" dir=\"ltr\"><span class=\"selectable-text copyable-text xkrh14z\">Mouvement chronographe Omega 18\u2033 CHRO \u00e0 l'int\u00e9rieur<\/span><\/p>\n<p class=\"selectable-text copyable-text x15bjb6t x1n2onr6\" dir=\"ltr\"><strong><span class=\"selectable-text copyable-text xkrh14z\">ANALYSE<\/span><\/strong><\/p>\n<p class=\"selectable-text copyable-text x15bjb6t x1n2onr6\" dir=\"ltr\"><span class=\"selectable-text copyable-text xkrh14z\">Cette montre Omega exceptionnelle marque le d\u00e9but de l'aventure pionni\u00e8re qui a conduit au d\u00e9veloppement des chronographes-bracelets entre la fin des ann\u00e9es 1920 et le d\u00e9but des ann\u00e9es 1930.<\/span><\/p>\n<p class=\"selectable-text copyable-text x15bjb6t x1n2onr6\" dir=\"ltr\"><span class=\"selectable-text copyable-text xkrh14z\">Cette splendide montre pr\u00e9sente un cadran \u00e9maill\u00e9 de qualit\u00e9 mus\u00e9e avec des index arabes de style Breguet. Tout le p\u00e9rim\u00e8tre du cadran est occup\u00e9 par une \u00e9chelle tachym\u00e9trique \u00e0 cinq spirales de couleurs diff\u00e9rentes. Les cinq m\u00eames couleurs sont \u00e9galement utilis\u00e9es sur le cadran des minutes du chronographe, ce qui permet de visualiser imm\u00e9diatement les vitesses. Ce cadran sectoriel multicolore a \u00e9t\u00e9 brevet\u00e9 en France en 1902. L'inscription \u00e0 6 heures, \"Cadran Brevet\u00e9 S.G.D.G\", fait r\u00e9f\u00e9rence \u00e0 ce brevet.<\/span><\/p>\n<p class=\"selectable-text copyable-text x15bjb6t x1n2onr6\" dir=\"ltr\"><span class=\"selectable-text copyable-text xkrh14z\">L'acronyme \"S.G.D.G.\" traduit litt\u00e9ralement en fran\u00e7ais par \"Brevet\u00e9 Sans Garantie Du Gouvernement\", les gouvernements fran\u00e7ais et belge se sont exon\u00e9r\u00e9s de toute responsabilit\u00e9 pour garantir la fonctionnalit\u00e9 de l'invention. La signature et le logo d'Omega se trouvent \u00e0 12 heures, tandis que les aiguilles de style Breguet, assorties aux index, sont traditionnellement temp\u00e9r\u00e9es en bleu.<\/span><\/p>\n<p class=\"selectable-text copyable-text x15bjb6t x1n2onr6\" dir=\"ltr\"><span class=\"selectable-text copyable-text xkrh14z\">Le grand bo\u00eetier en or jaune 18 carats est compos\u00e9 de trois pi\u00e8ces et pr\u00e9sente des cornes inclin\u00e9es ainsi que le bouton de d\u00e9marrage, d'arr\u00eat et de remise \u00e0 z\u00e9ro du m\u00e9canisme du chronographe, situ\u00e9 \u00e0 6 heures sur la carrure du bo\u00eetier. La magnifique couronne surdimensionn\u00e9e en forme d'oignon aplati se d\u00e9tache au dos du bo\u00eetier.<\/span><\/p>\n<p class=\"selectable-text copyable-text x15bjb6t x1n2onr6\" dir=\"ltr\"><span class=\"selectable-text copyable-text xkrh14z\">Sous le fond du bo\u00eetier \u00e0 charni\u00e8re, qui est manifestement sign\u00e9 par Omega \u00e0 l'int\u00e9rieur, se trouve le chef-d'\u0153uvre : le calibre chronographe CHRO 18\u2033 maison. Machine exceptionnelle, elle repr\u00e9sente un chapitre fondamental de l'histoire de l'horlogerie. Il s'agit en effet du premier cornographe de l'histoire \u00e0 \u00eatre produit en s\u00e9rie : il est dot\u00e9 d'un m\u00e9canisme horizontal et d'une roue \u00e0 colonnes, d'un \u00e9chappement \u00e0 ancre, de 15 rubis et d'un spiral Breguet, et il bat \u00e0 18 000 alternances par heure.<\/span><\/p>\n<p class=\"selectable-text copyable-text x15bjb6t x1n2onr6\" dir=\"ltr\"><span class=\"selectable-text copyable-text xkrh14z\">Une montre exceptionnelle par sa raret\u00e9, son \u00e9tat et ses caract\u00e9ristiques historiques et techniques. Un v\u00e9ritable conte de f\u00e9es romantique \u00e0 porter au poignet.<\/span><\/p>","protected":false},"excerpt":{"rendered":"<p>PRIX SUR DEMANDE<\/p>","protected":false},"featured_media":5985,"comment_status":"closed","ping_status":"closed","template":"","meta":[],"product_brand":[235],"product_cat":[234],"product_tag":[258],"class_list":["post-820","product","type-product","status-publish","has-post-thumbnail","product_brand-omega","product_cat-watches","product_tag-price-on-request","first","instock","taxable","shipping-taxable","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>Omega Chronograph &quot;Cadran Brevet\u00e9 S.G.D.G.&quot; 18KT Yellow Gold Case Manual-Wound Omega Movement 18&quot; CHRO From the 1930s - The Vintageur<\/title>\n<meta name=\"description\" content=\"SPECIFICATIONS Exceptional Omega chronograph with patented enamel dial, solid 18Kt yellow gold case, and in-house 18&quot; CHRO movement, from the 1930s. 45mm 18Ktyellow gold case Multicolor enamel dial Hinged case back Original crown Omega 18&quot; CHRO chronograph movement inside ANALYSIS This exceptional Omega watch marks the beginning of the pioneering adventure that led to the development of wrist chronographs between the late 1920s and early 1930s. This splendid watch features a museum-quality enamel dial with Breguet-style Arabic hour markers. The entire perimeter of the dial is occupied by a five-spiral tachymeter scale in different colors. The same five colors are also used on the chronograph minute subdial, allowing for an immediate view of speeds. This multi-color sector dial was patented in France in 1902. The inscription at 6 o&#039;clock, &quot;Cadran Brevet\u00e9 S.G.D.G,&quot; refers to that patent. The acronym &quot;S.G.D.G.&quot; Literally translated into French as &quot;Brevet\u00e9 Sans Garantie Du Gouvernement,&quot; the French and Belgian governments exempted themselves from liability for guaranteeing the functionality of the invention. Omega&#039;s signature and logo are at 12 o&#039;clock, while the Breguet-style hands, matching the hour markers, are traditionally tempered in blue. The large, solid 18K yellow gold case is three-piece and features tilting lugs and the chronograph mechanism&#039;s start, stop, and reset button at 6 o&#039;clock on the case middle. The beautiful oversized &quot;flattened onion&quot; crown stands out on the back side. Beneath the hinged caseback, which is obviously signed by Omega on the inside, lies the masterpiece: the in-house 18&quot; CHRO chronograph caliber. An exceptional machine, it represents a fundamental chapter in the history of watchmaking. It is, in fact, the first cornograph in history to be mass-produced: it has a horizontal mechanism and a column wheel; it has a lever escapement; it has 15 jewels and a Breguet balance spring; and it beats at 18,000 vibrations per hour. A truly exceptional watch for its rarity, condition, and historical and technical features. A true romantic fairytale to wear on your wrist.\" \/>\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\/fr\/boutique\/omega-big-chrono-aviator-ot-741-as\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Omega Chronograph &quot;Cadran Brevet\u00e9 S.G.D.G.&quot; 18KT Yellow Gold Case Manual-Wound Omega Movement 18&quot; CHRO From the 1930s\" \/>\n<meta property=\"og:description\" content=\"SPECIFICATIONS Exceptional Omega chronograph with patented enamel dial, solid 18Kt yellow gold case, and in-house 18&quot; CHRO movement, from the 1930s. 45mm 18Ktyellow gold case Multicolor enamel dial Hinged case back Original crown Omega 18&quot; CHRO chronograph movement inside ANALYSIS This exceptional Omega watch marks the beginning of the pioneering adventure that led to the development of wrist chronographs between the late 1920s and early 1930s. This splendid watch features a museum-quality enamel dial with Breguet-style Arabic hour markers. The entire perimeter of the dial is occupied by a five-spiral tachymeter scale in different colors. The same five colors are also used on the chronograph minute subdial, allowing for an immediate view of speeds. This multi-color sector dial was patented in France in 1902. The inscription at 6 o&#039;clock, &quot;Cadran Brevet\u00e9 S.G.D.G,&quot; refers to that patent. The acronym &quot;S.G.D.G.&quot; Literally translated into French as &quot;Brevet\u00e9 Sans Garantie Du Gouvernement,&quot; the French and Belgian governments exempted themselves from liability for guaranteeing the functionality of the invention. Omega&#039;s signature and logo are at 12 o&#039;clock, while the Breguet-style hands, matching the hour markers, are traditionally tempered in blue. The large, solid 18K yellow gold case is three-piece and features tilting lugs and the chronograph mechanism&#039;s start, stop, and reset button at 6 o&#039;clock on the case middle. The beautiful oversized &quot;flattened onion&quot; crown stands out on the back side. Beneath the hinged caseback, which is obviously signed by Omega on the inside, lies the masterpiece: the in-house 18&quot; CHRO chronograph caliber. An exceptional machine, it represents a fundamental chapter in the history of watchmaking. It is, in fact, the first cornograph in history to be mass-produced: it has a horizontal mechanism and a column wheel; it has a lever escapement; it has 15 jewels and a Breguet balance spring; and it beats at 18,000 vibrations per hour. A truly exceptional watch for its rarity, condition, and historical and technical features. A true romantic fairytale to wear on your wrist.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/thevintageur.com\/fr\/boutique\/omega-big-chrono-aviator-ot-741-as\/\" \/>\n<meta property=\"og:site_name\" content=\"The Vintageur\" \/>\n<meta property=\"article:modified_time\" content=\"2025-07-28T14:52:43+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/thevintageur.com\/wp-content\/uploads\/2016\/11\/PB173181-scaled.jpg\" \/>\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=\"Prix\" \/>\n\t<meta name=\"twitter:data1\" content=\"\" \/>\n\t<meta name=\"twitter:label2\" content=\"Disponibilit\u00e9\" \/>\n\t<meta name=\"twitter:data2\" content=\"En stock\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/thevintageur.com\\\/shop\\\/omega-big-chrono-aviator-ot-741-as\\\/\",\"url\":\"https:\\\/\\\/thevintageur.com\\\/shop\\\/omega-big-chrono-aviator-ot-741-as\\\/\",\"name\":\"Omega Chronograph \\\"Cadran Brevet\u00e9 S.G.D.G.\\\" 18KT Yellow Gold Case Manual-Wound Omega Movement 18\\\" CHRO From the 1930s - The Vintageur\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/thevintageur.com\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/thevintageur.com\\\/shop\\\/omega-big-chrono-aviator-ot-741-as\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/thevintageur.com\\\/shop\\\/omega-big-chrono-aviator-ot-741-as\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/thevintageur.com\\\/wp-content\\\/uploads\\\/2016\\\/11\\\/PB173181-scaled.jpg\",\"datePublished\":\"2016-11-11T17:27:44+00:00\",\"dateModified\":\"2025-07-28T14:52:43+00:00\",\"description\":\"SPECIFICATIONS Exceptional Omega chronograph with patented enamel dial, solid 18Kt yellow gold case, and in-house 18\\\" CHRO movement, from the 1930s. 45mm 18Ktyellow gold case Multicolor enamel dial Hinged case back Original crown Omega 18\\\" CHRO chronograph movement inside ANALYSIS This exceptional Omega watch marks the beginning of the pioneering adventure that led to the development of wrist chronographs between the late 1920s and early 1930s. This splendid watch features a museum-quality enamel dial with Breguet-style Arabic hour markers. The entire perimeter of the dial is occupied by a five-spiral tachymeter scale in different colors. The same five colors are also used on the chronograph minute subdial, allowing for an immediate view of speeds. This multi-color sector dial was patented in France in 1902. The inscription at 6 o'clock, \\\"Cadran Brevet\u00e9 S.G.D.G,\\\" refers to that patent. The acronym \\\"S.G.D.G.\\\" Literally translated into French as \\\"Brevet\u00e9 Sans Garantie Du Gouvernement,\\\" the French and Belgian governments exempted themselves from liability for guaranteeing the functionality of the invention. Omega's signature and logo are at 12 o'clock, while the Breguet-style hands, matching the hour markers, are traditionally tempered in blue. The large, solid 18K yellow gold case is three-piece and features tilting lugs and the chronograph mechanism's start, stop, and reset button at 6 o'clock on the case middle. The beautiful oversized \\\"flattened onion\\\" crown stands out on the back side. Beneath the hinged caseback, which is obviously signed by Omega on the inside, lies the masterpiece: the in-house 18\\\" CHRO chronograph caliber. An exceptional machine, it represents a fundamental chapter in the history of watchmaking. It is, in fact, the first cornograph in history to be mass-produced: it has a horizontal mechanism and a column wheel; it has a lever escapement; it has 15 jewels and a Breguet balance spring; and it beats at 18,000 vibrations per hour. A truly exceptional watch for its rarity, condition, and historical and technical features. A true romantic fairytale to wear on your wrist.\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/thevintageur.com\\\/shop\\\/omega-big-chrono-aviator-ot-741-as\\\/#breadcrumb\"},\"inLanguage\":\"fr-FR\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/thevintageur.com\\\/shop\\\/omega-big-chrono-aviator-ot-741-as\\\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"fr-FR\",\"@id\":\"https:\\\/\\\/thevintageur.com\\\/shop\\\/omega-big-chrono-aviator-ot-741-as\\\/#primaryimage\",\"url\":\"https:\\\/\\\/thevintageur.com\\\/wp-content\\\/uploads\\\/2016\\\/11\\\/PB173181-scaled.jpg\",\"contentUrl\":\"https:\\\/\\\/thevintageur.com\\\/wp-content\\\/uploads\\\/2016\\\/11\\\/PB173181-scaled.jpg\",\"width\":2560,\"height\":2560,\"caption\":\"OLYMPUS DIGITAL CAMERA\"},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/thevintageur.com\\\/shop\\\/omega-big-chrono-aviator-ot-741-as\\\/#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\":\"Omega Chronograph &#8220;Cadran Brevet\u00e9 S.G.D.G.&#8221; 18KT Yellow Gold Case Manual-Wound Omega Movement 18&#8243; CHRO From the 1930s\"}]},{\"@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\":\"fr-FR\"},{\"@type\":\"Organization\",\"@id\":\"https:\\\/\\\/thevintageur.com\\\/#organization\",\"name\":\"The Vintageur\",\"url\":\"https:\\\/\\\/thevintageur.com\\\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"fr-FR\",\"@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: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=\"51\" \/>\n<meta property=\"product:condition\" content=\"new\" \/>\n<!-- \/ Yoast SEO Premium plugin. -->","yoast_head_json":{"title":"Omega Chronographe \"Cadran Brevet\u00e9 S.G.D.G.\" Bo\u00eetier en or jaune 18KT Mouvement Omega \u00e0 remontage manuel 18\" CHRO Des ann\u00e9es 1930 - The Vintageur","description":"SPECIFICATIONS Exceptionnel chronographe Omega avec cadran \u00e9maill\u00e9 brevet\u00e9, bo\u00eetier en or jaune 18Kt massif et mouvement CHRO 18\" de manufacture, datant des ann\u00e9es 1930. 45mm Bo\u00eetier en or jaune 18K Cadran \u00e9maill\u00e9 multicolore Fond du bo\u00eetier \u00e0 charni\u00e8re Couronne originale Mouvement chronographe Omega 18\" CHRO \u00e0 l'int\u00e9rieur ANALYSE Cette montre Omega exceptionnelle marque le d\u00e9but de l'aventure pionni\u00e8re qui a conduit au d\u00e9veloppement des chronographes-bracelets entre la fin des ann\u00e9es 1920 et le d\u00e9but des ann\u00e9es 1930. Cette splendide montre pr\u00e9sente un cadran \u00e9maill\u00e9 de qualit\u00e9 mus\u00e9e avec des index arabes de style Breguet. Tout le p\u00e9rim\u00e8tre du cadran est occup\u00e9 par une \u00e9chelle tachym\u00e9trique \u00e0 cinq spirales de couleurs diff\u00e9rentes. Les cinq m\u00eames couleurs sont \u00e9galement utilis\u00e9es sur le cadran des minutes du chronographe, ce qui permet de visualiser imm\u00e9diatement les vitesses. Ce cadran sectoriel multicolore a \u00e9t\u00e9 brevet\u00e9 en France en 1902. L'inscription \u00e0 6 heures, \"Cadran Brevet\u00e9 S.G.D.G\", fait r\u00e9f\u00e9rence \u00e0 ce brevet. L'acronyme \"S.G.D.G.\" traduit litt\u00e9ralement en fran\u00e7ais par \"Brevet\u00e9 Sans Garantie Du Gouvernement\", signifie que les gouvernements fran\u00e7ais et belge se sont exon\u00e9r\u00e9s de la responsabilit\u00e9 de garantir la fonctionnalit\u00e9 de l'invention. La signature et le logo d'Omega se trouvent \u00e0 12 heures, tandis que les aiguilles de style Breguet, assorties aux index, sont traditionnellement temp\u00e9r\u00e9es en bleu. Le grand bo\u00eetier en or jaune 18 carats est compos\u00e9 de trois pi\u00e8ces et pr\u00e9sente des cornes inclin\u00e9es ainsi que le bouton de d\u00e9marrage, d'arr\u00eat et de remise \u00e0 z\u00e9ro du m\u00e9canisme du chronographe, situ\u00e9 \u00e0 6 heures sur la carrure du bo\u00eetier. La magnifique couronne surdimensionn\u00e9e en forme d'oignon aplati se d\u00e9tache au dos du bo\u00eetier. Sous le fond du bo\u00eetier \u00e0 charni\u00e8re, qui est manifestement sign\u00e9 par Omega \u00e0 l'int\u00e9rieur, se trouve le chef-d'\u0153uvre : le calibre chronographe CHRO 18\" maison. Machine exceptionnelle, il repr\u00e9sente un chapitre fondamental de l'histoire de l'horlogerie. Il s'agit en effet du premier cornographe de l'histoire \u00e0 \u00eatre produit en s\u00e9rie : m\u00e9canisme horizontal et roue \u00e0 colonnes ; \u00e9chappement \u00e0 ancre ; 15 rubis et spiral Breguet ; 18'000 alternances par heure. Une montre exceptionnelle par sa raret\u00e9, son \u00e9tat et ses caract\u00e9ristiques historiques et techniques. Un v\u00e9ritable conte de f\u00e9es romantique \u00e0 porter au poignet.","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\/fr\/boutique\/omega-big-chrono-aviator-ot-741-as\/","og_locale":"fr_FR","og_type":"article","og_title":"Omega Chronograph \"Cadran Brevet\u00e9 S.G.D.G.\" 18KT Yellow Gold Case Manual-Wound Omega Movement 18\" CHRO From the 1930s","og_description":"SPECIFICATIONS Exceptional Omega chronograph with patented enamel dial, solid 18Kt yellow gold case, and in-house 18\" CHRO movement, from the 1930s. 45mm 18Ktyellow gold case Multicolor enamel dial Hinged case back Original crown Omega 18\" CHRO chronograph movement inside ANALYSIS This exceptional Omega watch marks the beginning of the pioneering adventure that led to the development of wrist chronographs between the late 1920s and early 1930s. This splendid watch features a museum-quality enamel dial with Breguet-style Arabic hour markers. The entire perimeter of the dial is occupied by a five-spiral tachymeter scale in different colors. The same five colors are also used on the chronograph minute subdial, allowing for an immediate view of speeds. This multi-color sector dial was patented in France in 1902. The inscription at 6 o'clock, \"Cadran Brevet\u00e9 S.G.D.G,\" refers to that patent. The acronym \"S.G.D.G.\" Literally translated into French as \"Brevet\u00e9 Sans Garantie Du Gouvernement,\" the French and Belgian governments exempted themselves from liability for guaranteeing the functionality of the invention. Omega's signature and logo are at 12 o'clock, while the Breguet-style hands, matching the hour markers, are traditionally tempered in blue. The large, solid 18K yellow gold case is three-piece and features tilting lugs and the chronograph mechanism's start, stop, and reset button at 6 o'clock on the case middle. The beautiful oversized \"flattened onion\" crown stands out on the back side. Beneath the hinged caseback, which is obviously signed by Omega on the inside, lies the masterpiece: the in-house 18\" CHRO chronograph caliber. An exceptional machine, it represents a fundamental chapter in the history of watchmaking. It is, in fact, the first cornograph in history to be mass-produced: it has a horizontal mechanism and a column wheel; it has a lever escapement; it has 15 jewels and a Breguet balance spring; and it beats at 18,000 vibrations per hour. A truly exceptional watch for its rarity, condition, and historical and technical features. A true romantic fairytale to wear on your wrist.","og_url":"https:\/\/thevintageur.com\/fr\/boutique\/omega-big-chrono-aviator-ot-741-as\/","og_site_name":"The Vintageur","article_modified_time":"2025-07-28T14:52:43+00:00","og_image":[{"width":2560,"height":2560,"url":"https:\/\/thevintageur.com\/wp-content\/uploads\/2016\/11\/PB173181-scaled.jpg","type":"image\/jpeg"}],"twitter_card":"summary_large_image","twitter_misc":{"Prix":"","Disponibilit\u00e9":"En stock"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/thevintageur.com\/shop\/omega-big-chrono-aviator-ot-741-as\/","url":"https:\/\/thevintageur.com\/shop\/omega-big-chrono-aviator-ot-741-as\/","name":"Omega Chronographe \"Cadran Brevet\u00e9 S.G.D.G.\" Bo\u00eetier en or jaune 18KT Mouvement Omega \u00e0 remontage manuel 18\" CHRO Des ann\u00e9es 1930 - The Vintageur","isPartOf":{"@id":"https:\/\/thevintageur.com\/#website"},"primaryImageOfPage":{"@id":"https:\/\/thevintageur.com\/shop\/omega-big-chrono-aviator-ot-741-as\/#primaryimage"},"image":{"@id":"https:\/\/thevintageur.com\/shop\/omega-big-chrono-aviator-ot-741-as\/#primaryimage"},"thumbnailUrl":"https:\/\/thevintageur.com\/wp-content\/uploads\/2016\/11\/PB173181-scaled.jpg","datePublished":"2016-11-11T17:27:44+00:00","dateModified":"2025-07-28T14:52:43+00:00","description":"SPECIFICATIONS Exceptionnel chronographe Omega avec cadran \u00e9maill\u00e9 brevet\u00e9, bo\u00eetier en or jaune 18Kt massif et mouvement CHRO 18\" de manufacture, datant des ann\u00e9es 1930. 45mm Bo\u00eetier en or jaune 18K Cadran \u00e9maill\u00e9 multicolore Fond du bo\u00eetier \u00e0 charni\u00e8re Couronne originale Mouvement chronographe Omega 18\" CHRO \u00e0 l'int\u00e9rieur ANALYSE Cette montre Omega exceptionnelle marque le d\u00e9but de l'aventure pionni\u00e8re qui a conduit au d\u00e9veloppement des chronographes-bracelets entre la fin des ann\u00e9es 1920 et le d\u00e9but des ann\u00e9es 1930. Cette splendide montre pr\u00e9sente un cadran \u00e9maill\u00e9 de qualit\u00e9 mus\u00e9e avec des index arabes de style Breguet. Tout le p\u00e9rim\u00e8tre du cadran est occup\u00e9 par une \u00e9chelle tachym\u00e9trique \u00e0 cinq spirales de couleurs diff\u00e9rentes. Les cinq m\u00eames couleurs sont \u00e9galement utilis\u00e9es sur le cadran des minutes du chronographe, ce qui permet de visualiser imm\u00e9diatement les vitesses. Ce cadran sectoriel multicolore a \u00e9t\u00e9 brevet\u00e9 en France en 1902. L'inscription \u00e0 6 heures, \"Cadran Brevet\u00e9 S.G.D.G\", fait r\u00e9f\u00e9rence \u00e0 ce brevet. L'acronyme \"S.G.D.G.\" traduit litt\u00e9ralement en fran\u00e7ais par \"Brevet\u00e9 Sans Garantie Du Gouvernement\", signifie que les gouvernements fran\u00e7ais et belge se sont exon\u00e9r\u00e9s de la responsabilit\u00e9 de garantir la fonctionnalit\u00e9 de l'invention. La signature et le logo d'Omega se trouvent \u00e0 12 heures, tandis que les aiguilles de style Breguet, assorties aux index, sont traditionnellement temp\u00e9r\u00e9es en bleu. Le grand bo\u00eetier en or jaune 18 carats est compos\u00e9 de trois pi\u00e8ces et pr\u00e9sente des cornes inclin\u00e9es ainsi que le bouton de d\u00e9marrage, d'arr\u00eat et de remise \u00e0 z\u00e9ro du m\u00e9canisme du chronographe, situ\u00e9 \u00e0 6 heures sur la carrure du bo\u00eetier. La magnifique couronne surdimensionn\u00e9e en forme d'oignon aplati se d\u00e9tache au dos du bo\u00eetier. Sous le fond du bo\u00eetier \u00e0 charni\u00e8re, qui est manifestement sign\u00e9 par Omega \u00e0 l'int\u00e9rieur, se trouve le chef-d'\u0153uvre : le calibre chronographe CHRO 18\" maison. Machine exceptionnelle, il repr\u00e9sente un chapitre fondamental de l'histoire de l'horlogerie. Il s'agit en effet du premier cornographe de l'histoire \u00e0 \u00eatre produit en s\u00e9rie : m\u00e9canisme horizontal et roue \u00e0 colonnes ; \u00e9chappement \u00e0 ancre ; 15 rubis et spiral Breguet ; 18'000 alternances par heure. Une montre exceptionnelle par sa raret\u00e9, son \u00e9tat et ses caract\u00e9ristiques historiques et techniques. Un v\u00e9ritable conte de f\u00e9es romantique \u00e0 porter au poignet.","breadcrumb":{"@id":"https:\/\/thevintageur.com\/shop\/omega-big-chrono-aviator-ot-741-as\/#breadcrumb"},"inLanguage":"fr-FR","potentialAction":[{"@type":"ReadAction","target":["https:\/\/thevintageur.com\/shop\/omega-big-chrono-aviator-ot-741-as\/"]}]},{"@type":"ImageObject","inLanguage":"fr-FR","@id":"https:\/\/thevintageur.com\/shop\/omega-big-chrono-aviator-ot-741-as\/#primaryimage","url":"https:\/\/thevintageur.com\/wp-content\/uploads\/2016\/11\/PB173181-scaled.jpg","contentUrl":"https:\/\/thevintageur.com\/wp-content\/uploads\/2016\/11\/PB173181-scaled.jpg","width":2560,"height":2560,"caption":"OLYMPUS DIGITAL CAMERA"},{"@type":"BreadcrumbList","@id":"https:\/\/thevintageur.com\/shop\/omega-big-chrono-aviator-ot-741-as\/#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":"Omega Chronograph &#8220;Cadran Brevet\u00e9 S.G.D.G.&#8221; 18KT Yellow Gold Case Manual-Wound Omega Movement 18&#8243; CHRO From the 1930s"}]},{"@type":"WebSite","@id":"https:\/\/thevintageur.com\/#website","url":"https:\/\/thevintageur.com\/","name":"Le Vintageur","description":"Votre collection de montres sur mesure","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":"fr-FR"},{"@type":"Organization","@id":"https:\/\/thevintageur.com\/#organization","name":"Le Vintageur","url":"https:\/\/thevintageur.com\/","logo":{"@type":"ImageObject","inLanguage":"fr-FR","@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_currency":"EUR","og_availability":"instock","product_availability":"instock","product_retailer_item_id":"51","product_condition":"new"},"_links":{"self":[{"href":"https:\/\/thevintageur.com\/fr\/wp-json\/wp\/v2\/product\/820","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/thevintageur.com\/fr\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/thevintageur.com\/fr\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/thevintageur.com\/fr\/wp-json\/wp\/v2\/comments?post=820"}],"version-history":[{"count":0,"href":"https:\/\/thevintageur.com\/fr\/wp-json\/wp\/v2\/product\/820\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/thevintageur.com\/fr\/wp-json\/wp\/v2\/media\/5985"}],"wp:attachment":[{"href":"https:\/\/thevintageur.com\/fr\/wp-json\/wp\/v2\/media?parent=820"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/thevintageur.com\/fr\/wp-json\/wp\/v2\/product_brand?post=820"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/thevintageur.com\/fr\/wp-json\/wp\/v2\/product_cat?post=820"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/thevintageur.com\/fr\/wp-json\/wp\/v2\/product_tag?post=820"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}