{"product_id":"montre-seiko-tonneau-acier-5931-5330-cadran-soleille-argent-1981","title":"Vintage Seiko Tonneau Watch — 5931-5330 Silver Sunburst Dial (1981) ","description":"\u003ch2\u003eSeiko Tonneau — A Japanese dress watch with 1980s design\u003c\/h2\u003e\n\u003cp\u003eThis \u003cstrong\u003evintage Seiko watch\u003c\/strong\u003e, produced around 1981, illustrates a silhouette that is rare today: the \u003cstrong\u003etonneau shape\u003c\/strong\u003e (or cushion case in English), a square case with very rounded edges that characterized Japanese watchmaking aesthetics in the early 1980s. Halfway between the roundness of a classic case and the modernity of a carrée watch, the tonneau gives a singular presence on the wrist, standing apart from the usual dress watches.\u003c\/p\u003e\n\u003cp\u003eThe \u003cstrong\u003esunburst silver dial\u003c\/strong\u003e plays with the light thanks to its brushed finish radiating from the center. This texture, prized by dress watch enthusiasts, gives the watch an elegant visual depth that changes with the angle. The \u003cstrong\u003eapplied black baton indexes\u003c\/strong\u003e in relief and the \u003cem\u003eSEIKO QUARTZ\u003c\/em\u003e signature at 12 o'clock create a refined, dressy reading. The \u003cstrong\u003esmall \"lightning bolt\" logo of Seiko Quartz at 6 o'clock\u003c\/strong\u003e, a marker of the brand's quartz models from that period, confirms the authenticity of the piece.\u003c\/p\u003e\n\u003cp\u003ePowered by the \u003cstrong\u003eSeiko 5931 caliber\u003c\/strong\u003e, a reliable and precise Japanese quartz movement from the early 1980s, this piece offers the practicality of quartz without sacrificing the charm of a true vintage watch. Its \u003cstrong\u003e6.5 mm profile\u003c\/strong\u003e remains restrained for ideal wearing comfort, and its \u003cstrong\u003e33 mm format\u003c\/strong\u003e makes it a perfectly Unisex piece — feminine on a slender wrist, masculine on a modern wrist that appreciates compact proportions.\u003c\/p\u003e\n\u003cp\u003eMounted on a \u003cstrong\u003enavy blue leather strap with contrasting stitching\u003c\/strong\u003e, this \u003cstrong\u003eSeiko Tonneau\u003c\/strong\u003e clearly departs from classic dressy black: the petrol blue brings a relaxed masculine touch that contrasts beautifully with the brushed steel case. Selected, authenticated and serviced by Atelier Victor. Fast and secure international shipping.\u003c\/p\u003e\n\u003ch3\u003eThree points to note about this piece\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eCase steel with a tonneau shape (cushion case): a rare and recognizable Japanese 1980s silhouette.\u003c\/li\u003e\n\u003cli\u003eSunburst silver dial with applied baton indexes and Seiko Quartz \"lightning bolt\" logo: the authentic signature of Japanese quartz models of the era.\u003c\/li\u003e\n\u003cli\u003eNavy blue leather strap with contrasting beige stitching: a color choice that departs from classic dress codes and adds character.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003e\u003ca href=\"https:\/\/ateliervictor.co\/collections\/montres-seiko-vintage\" title=\"Vintage Seiko Watches\"\u003eSee our other vintage Seiko watches →\u003c\/a\u003e\u003c\/em\u003e | \u003cem\u003e\u003ca href=\"https:\/\/ateliervictor.co\/collections\/montres-vintage-moins-500\" title=\"Vintage Watches under €500\"\u003eSee our vintage watches under €500 →\u003c\/a\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003eTechnical specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Seiko\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e Dress watch with a tonneau shape\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReference:\u003c\/strong\u003e 5931-5330\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEstimated year:\u003c\/strong\u003e 1981\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOrigin:\u003c\/strong\u003e Japan\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGender:\u003c\/strong\u003e Men's and women's watch (Unisex)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMovement:\u003c\/strong\u003e Japanese quartz, caliber Seiko 5931\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFunctions:\u003c\/strong\u003e Hours, minutes, seconds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCase:\u003c\/strong\u003e Steel (case back steel), shape tonneau (cushion case)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e 33mm (35mm with crown)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLug to lug:\u003c\/strong\u003e 39mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThickness:\u003c\/strong\u003e 6.5mm (Crystal included)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLug width:\u003c\/strong\u003e  18mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCrown :\u003c\/strong\u003e Steel, original\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDial :\u003c\/strong\u003e Sunburst silver, applied black baton indexes, signature Seiko Quartz and lightning logo at 6 o'clock, original\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHands :\u003c\/strong\u003e Black baton, original\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCrystal :\u003c\/strong\u003e Mineral, good condition (7\/10)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStrap :\u003c\/strong\u003e Navy blue leather with contrasting beige stitching, non-original\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBuckle :\u003c\/strong\u003e Steel buckle, non-original\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eCondition and warranty\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall condition :\u003c\/strong\u003e Very fine state of preservation. Original flawless sunburst silver dial, brushed steel case in good condition, Crystal mineral showing some light wear scratches consistent with its age (7\/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\u003eMovement :\u003c\/strong\u003e Checked quartz movement, 1-year warranty\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncluded :\u003c\/strong\u003e Atelier Victor invoice, 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\u003eFrequently asked questions\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eWhat is a tonneau watch ?\u003c\/strong\u003e\u003cbr\u003eA tonneau watch (\"cushion case\" in English) refers to a square case with very rounded corners, midway between a carrée watch and a round watch. Very popular in the 70s and early 80s, this distinctive silhouette offers a unique presence on the wrist, different from the classic round form. It is now rare on the new market, making it an increasingly sought-after aesthetic choice in vintage circles.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWhat is the Seiko caliber 5931 ?\u003c\/strong\u003e\u003cbr\u003eThe 5931 caliber is a Japanese quartz Seiko movement from the early 80s, powering the brand's dress watches. It is a reliable and precise caliber, easy to maintain, requiring only a battery replacement every 2 to 3 years.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWhat does the lightning logo on the dial mean ?\u003c\/strong\u003e\u003cbr\u003eThe small stylized lightning-shaped logo present at 6 o'clock on the dial is the official marker of Seiko quartz models from the 70s-80s. It is the equivalent of the \"SQ\" logo found on other Seiko Quartz series of the era — a guarantee of authenticity and a detail appreciated by collectors.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIs this watch suitable for a man or a woman ?\u003c\/strong\u003e\u003cbr\u003eWith its tonneau case of 33mm and its 6.5mm profile, it is a perfectly Unisex piece — feminine on a slender wrist, masculine for those who appreciate compact formats in the tradition of vintage watches from the 80s, when diameters were naturally more modest than today.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIs the Crystal mineral repairable ?\u003c\/strong\u003e\u003cbr\u003eYes. The Crystal mineral can be polished to erase superficial scratches, or replaced with a new identical Crystal by our watchmakers for a modest cost. Please do not hesitate to contact us to discuss a possible intervention.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWhat is the international delivery time ?\u003c\/strong\u003e\u003cbr\u003eDispatch within 48 hours, worldwide delivery in 3 to 5 days via DHL Express, insurance included.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e ","brand":"Seiko","offers":[{"title":"Default Title","offer_id":53944231035217,"sku":"110459 5931-5330","price":285.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0703\/8576\/2597\/files\/VD_01762_7907d476-ab13-432e-8e46-e6775cf7653f.jpg?v=1780493853","url":"https:\/\/ateliervictor.co\/en\/products\/vintage-seiko-tonneau-stainless-steel-5931-5330-silver-sunburst-dial-1981","provider":"Atelier Victor","version":"1.0","type":"link"}