{"product_id":"montre-omega-vintage-de-ville-511-415-cadran-dore-soleille-1975","title":"Vintage Omega Watch De Ville 511.415 — Sunburst Golden Dial (1975) ","description":"\u003cdiv style=\"margin: 28px 0; padding: 22px 12px; border-bottom: 1px solid #e2ddd5; text-align: center;\"\u003e\n\u003cp style=\"margin: 0 0 10px; font-size: 11px; letter-spacing: 0.18em; text-transform: uppercase; opacity: 0.5;\"\u003eAtelier Note\u003c\/p\u003e\n\u003cp style=\"margin: 0; font-style: italic; font-size: 16px; line-height: 1.7;\"\u003eFour strokes instead of a IV: the dial follows the watchmakers' IIII, an old convention that has remained on watches with Roman numerals. The sunburst starts from the center and runs to the corners of the square case.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch2\u003eA gold-plated square, golden sunburst dial and Roman numerals\u003c\/h2\u003e\n\u003cp\u003eThis \u003cstrong\u003eOmega watch\u003c\/strong\u003e is an \u003cstrong\u003eDe Ville\u003c\/strong\u003e, reference \u003cstrong\u003e511.415\u003c\/strong\u003e, produced in \u003cstrong\u003e1975\u003c\/strong\u003e. The case is \u003cstrong\u003esquare with rounded corners\u003c\/strong\u003e, \u003cstrong\u003egold-plated\u003c\/strong\u003e, fitted with short lugs that close the shape rather than extending it. Seen from the front, there is only a golden square and a domed Crystal set on top.\u003c\/p\u003e\n\u003cp\u003eThe \u003cstrong\u003egolden dial is sunburst\u003c\/strong\u003e: the rays start from the center and open out to the four corners, so that the light moves across the dial with every movement of the wrist. The \u003cstrong\u003eblack Roman numerals\u003c\/strong\u003e are printed at the edge, fine and elongated, with the \u003cstrong\u003eIIII\u003c\/strong\u003e at four o'clock according to watchmakers' convention. Beneath the logo, the only inscription \u003cem\u003eDE VILLE\u003c\/em\u003e, and two \u003cstrong\u003eblack leaf hands\u003c\/strong\u003e — no seconds, no date.\u003c\/p\u003e\n\u003cp\u003eThe movement is an \u003cstrong\u003eOmega calibre 625\u003c\/strong\u003e, a mechanical \u003cstrong\u003ehand-wound\u003c\/strong\u003e movement, 17 jewels, 21,600 vibrations per hour and approximately 41 hours of power reserve. It displays only the hours and minutes, which explains the case's \u003cstrong\u003e6.4mm thickness\u003c\/strong\u003e. It was serviced in July 2026.\u003c\/p\u003e\n\u003cp\u003eThe piece is fitted with a \u003cstrong\u003eblack crocodile-style leather strap\u003c\/strong\u003e, closed by a \u003cstrong\u003eBuckle pin buckle\u003c\/strong\u003e, on a 16mm Lug width that allows for easy replacement.\u003c\/p\u003e\n\u003ch3 style=\"margin: 40px 0 16px;\"\u003eThree points to note\u003c\/h3\u003e\n\u003cdiv style=\"margin: 20px 0; padding-left: 16px; border-left: 1px solid #e2ddd5;\"\u003e\n\u003cp style=\"margin: 0 0 4px; font-size: 12px; letter-spacing: 0.1em; opacity: 0.45;\"\u003e01\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 18px;\"\u003e\u003cstrong\u003eOriginal golden sunburst dial\u003c\/strong\u003e — rays opening to the corners, black Roman numerals and IIII at four o'clock.\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 4px; font-size: 12px; letter-spacing: 0.1em; opacity: 0.45;\"\u003e02\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 18px;\"\u003e\u003cstrong\u003eOmega calibre 625\u003c\/strong\u003e — hand-wound, 17 jewels, 21,600 vibrations, 41 hours of power reserve.\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 4px; font-size: 12px; letter-spacing: 0.1em; opacity: 0.45;\"\u003e03\u003c\/p\u003e\n\u003cp style=\"margin: 0;\"\u003e\u003cstrong\u003e6.4mm thick for 27mm width\u003c\/strong\u003e — a square that slips under the cuff without lifting it.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch3 style=\"margin: 40px 0 16px;\"\u003eWhy choose this Omega De Ville?\u003c\/h3\u003e\n\u003cp\u003eThis \u003cstrong\u003epre-owned Omega watch\u003c\/strong\u003e holds a precise place among our \u003cstrong\u003evintage watches\u003c\/strong\u003e: the De Ville of the 1970s is the line in which Omega worked on form rather than complication, and this golden square is its most direct version — one case, one dial, two hands. This one has kept its original dial, its acrylic Crystal and its gold-plated crown.\u003c\/p\u003e\n\u003cp\u003eLike all our \u003cstrong\u003epre-owned luxury watches\u003c\/strong\u003e, this one has been opened and checked by our partner watchmakers: verification of the movement, examination of the dial, hands and case. Each \u003cstrong\u003evintage Omega watch\u003c\/strong\u003e  that we offer comes with an Atelier Victor invoice serving as a certificate, a one-year warranty, and guaranteed lifetime authenticity.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003e→ \u003ca href=\"\/en\/collections\/montres-omega-vintage\" title=\"Montres Omega Vintage\"\u003eDiscover our vintage Omega watches\u003c\/a\u003e\u003cbr\u003e→ \u003ca href=\"\/en\/collections\/nouveautes-montres-vintage-doccasion-de-luxe\" title=\"Nouveautés Montres Vintage\"\u003eSee our latest newly arrived pieces\u003c\/a\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003ch3 style=\"margin: 40px 0 16px;\"\u003eTechnical specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Omega\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e De Ville, square case\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReference:\u003c\/strong\u003e 511.415\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eYear:\u003c\/strong\u003e 1975\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSerial number:\u003c\/strong\u003e 394•••••\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOrigin:\u003c\/strong\u003e Switzerland\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGender:\u003c\/strong\u003e Men's watch, women's watch (Unisex)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMovement:\u003c\/strong\u003e Hand-wound mechanical, Omega caliber 625, 17 jewels\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFunctions:\u003c\/strong\u003e Hours, minutes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCase:\u003c\/strong\u003e Gold-plated, square with rounded corners\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCase back:\u003c\/strong\u003e Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWidth:\u003c\/strong\u003e 27mm (28.5mm with crown)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLug to lug:\u003c\/strong\u003e 32mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThickness:\u003c\/strong\u003e 6.4mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLug width:\u003c\/strong\u003e 16mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCrown:\u003c\/strong\u003e Gold-plated, fluted, original\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDial:\u003c\/strong\u003e Sunburst golden, black Roman numerals, original\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHands:\u003c\/strong\u003e Blackened leaf, original\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCrystal:\u003c\/strong\u003e Domed acrylic, original\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStrap:\u003c\/strong\u003e Black crocodile-grain leather, not original\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBuckle:\u003c\/strong\u003e Steel pin buckle, not original\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eService:\u003c\/strong\u003e July 2026\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 style=\"margin: 40px 0 16px;\"\u003eCondition and warranty\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall condition:\u003c\/strong\u003e Well preserved condition. The sunburst golden dial is crisp, the sunray finish and Roman printing are intact, and the hands show no alteration. The gold-plated case shows signs of wear scratches on the polished surfaces and edges, visible in our photographs; the acrylic Crystal shows fine signs of use (8\/10).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWater resistance:\u003c\/strong\u003e Not guaranteed (vintage watch)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAuthenticity:\u003c\/strong\u003e Lifetime guarantee\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMechanical:\u003c\/strong\u003e Movement serviced in July 2026, guaranteed for 1 year\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncluded:\u003c\/strong\u003e Atelier Victor invoice serving as a certificate, protective case\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNot included:\u003c\/strong\u003e Original box and papers\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 style=\"margin: 40px 0 16px;\"\u003eFrequently asked questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eWhy does the dial show IIII instead of IV?\u003c\/strong\u003e\u003cbr\u003eIt is the watchmakers' IIII, an old convention of watchmaking and clock dials, preserved on a large number of watches with Roman numerals. Many explanations have been put forward and none has reached a consensus; what is certain is that it is a professional convention and not a printing error.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat movement powers this Omega De Ville?\u003c\/strong\u003e\u003cbr\u003eAn Omega caliber 625, hand-wound mechanical, 17 jewels, beating at 21,600 vibrations per hour for approximately 41 hours of power reserve. Produced by Omega between 1973 and 1979, it displays only the hours and minutes, which allows for the movement's 2.5mm height and the slimness of the case.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhy are there only two hands?\u003c\/strong\u003e \u003cbr\u003eBecause the caliber 625 is built that way: hours and minutes, with no seconds or date. It is a design choice specific to thin watches from this period — the surface of the dial remains uncluttered and nothing moves continuously across it. The version with central seconds exists under another caliber reference.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes a gold-plated case require precautions?\u003c\/strong\u003e\u003cbr\u003eYes, more than steel. The plating is a layer of gold applied over a base metal: it wears on friction points, mainly the edges and the caseback. It is preserved by avoiding water, household products and cosmetics, and is cleaned with a soft, dry cloth, never with an abrasive or polishing paste, which remove the layer.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs this piece suitable for a slim or larger wrist?\u003c\/strong\u003e\u003cbr\u003eAt 27mm wide, 32mm Lug-to-lug and 6.4mm thick, it sits well on wrists of approximately 15 to 18cm — a guide, never a rule: everyone wears what they like. A square case has more visual presence than a round one of the same size. The 16mm Lug width allows for the full range of standard straps.\u003c\/p\u003e\n \u003cscript type=\"application\/ld+json\"\u003e\n{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"Pourquoi le cadran porte-t-il IIII et non IV ?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"C'est le IIII dit des horlogers, un usage ancien de l'horlogerie et des cadrans d'édifices, conservé sur une grande partie des montres à chiffres romains. Les explications avancées sont nombreuses et aucune ne fait consensus ; ce qui est certain, c'est qu'il s'agit d'une convention de métier et non d'une erreur d'impression.\"}}, {\"@type\": \"Question\", \"name\": \"Quel mouvement anime cette Omega De Ville ?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Un calibre Omega 625, mécanique à remontage manuel, 17 rubis, cadençant à 21 600 alternances par heure pour environ 41 heures de réserve. Produit par Omega entre 1973 et 1979, il ne porte que les heures et les minutes, ce qui permet les 2,5mm de hauteur du mouvement et la finesse du boîtier.\"}}, {\"@type\": \"Question\", \"name\": \"Pourquoi n'y a-t-il que deux aiguilles ?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Parce que le calibre 625 est construit ainsi : heures et minutes, sans seconde ni date. C'est un choix de dessin propre aux montres plates de cette période — la surface du cadran reste libre et rien ne bouge en permanence dessus. La version à seconde centrale existe sous une autre référence de calibre.\"}}, {\"@type\": \"Question\", \"name\": \"Un boîtier plaqué or demande-t-il des précautions ?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Oui, plus qu'un acier. Le placage est une couche d'or déposée sur un métal de base : il s'use aux points de frottement, principalement les arêtes et le dos. Il se conserve en évitant l'eau, les produits ménagers et les cosmétiques, et se nettoie au chiffon doux et sec, jamais avec un abrasif ni une pâte à polir, qui retirent la couche.\"}}, {\"@type\": \"Question\", \"name\": \"Cette pièce convient-elle à un poignet fin ou large ?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Avec 27mm de large, 32mm de corne à corne et 6,4mm d'épaisseur, elle se place sur des poignets de 15 à 18cm environ — un repère, jamais une règle : chacun porte ce qui lui plaît. Un boîtier carré occupe visuellement plus qu'un rond de même cote. L'entrecorne de 16mm ouvre sur tout le choix des bracelets standards.\"}}]}\n\u003c\/script\u003e  ","brand":"Omega","offers":[{"title":"Default Title","offer_id":54820357734737,"sku":"ref:511.415 serial:39474200 cal:625","price":913.5,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0703\/8576\/2597\/files\/montre-omega-de-ville-511-415-cadran-dore-soleille-1975-atelier-victor-1.jpg?v=1789505767","url":"https:\/\/ateliervictor.co\/en\/products\/vintage-omega-watch-de-ville-511-415-sunburst-golden-dial-1975","provider":"Atelier Victor","version":"1.0","type":"link"}