{"product_id":"montre-seiko-7820-5130-acier-tank-cadran-cercles-1980s","title":"Vintage Seiko 7820-5130 Stainless Steel — Tank Circle Dial (1980s) ","description":"\u003ch2\u003eSeiko Tank steel: the Japanese dress watch with a black dial and navy blue circle motif\u003c\/h2\u003e\n\u003cp\u003eThis Seiko watch is a \u003cstrong\u003edress watch\u003c\/strong\u003e for both men and women, designed in the classic vocabulary of the shaped watch. Its \u003cstrong\u003erectangular case\u003c\/strong\u003e in steel, with sharp angles and polished flanks, cultivates a sober, timeless elegance. The case measures 28mm (30mm with the crown) for a Lug-to-lug of 34mm and a thickness of just 6.3mm. A slim, graphic piece, made to slip under a cuff.\u003c\/p\u003e\n\u003cp\u003eThe \u003cstrong\u003eblack dial\u003c\/strong\u003e is the star feature of the piece. Its surface is entirely covered with a grid-like pattern of small navy blue circles, a textured lattice that catches the light in thousands of points and shifts the dial from deep black to midnight blue depending on the angle. The applied steel baton indexes set the rhythm around the perimeter, while the small Seiko vintage medallion sits below the center. Two steel baton hands are all that is needed: no seconds hand, no date, just the essentials on this beautifully worked background.\u003c\/p\u003e\n\u003cp\u003eInside beats the \u003cstrong\u003ecaliber Seiko 7820\u003c\/strong\u003e, a high-end analog quartz movement with two hands, produced in Japan in the 1980s. Its slim construction is precisely what makes the watch's 6.3mm profile possible. The movement of this example has been checked by our watchmaker and the battery replaced before shipping. Seiko did not publish any precision specification for this caliber: we therefore make no numerical claim.\u003c\/p\u003e\n\u003cp\u003eOn the wrist, the piece behaves like a \u003cstrong\u003ede ville jewel\u003c\/strong\u003e. The steel and black dial with navy blue circles create a dark, refined ensemble, here highlighted by a \u003cstrong\u003egenuine crocodile leather\u003c\/strong\u003e black strap that extends the sobriety of the whole. This strap is not original; it is mounted on a buckle Buckle. The Lug width measuring 22mm firmly anchors the watch on the wrist.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThree points to note\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eThe black background dial with navy blue circle motif is the strength of the piece: a dial treatment characteristic of careful Seiko dress watches, revealed in the light.\u003c\/li\u003e\n\u003cli\u003eNo original precision specification has been published by Seiko for this caliber. We therefore make no claim of any value in seconds per month.\u003c\/li\u003e\n\u003cli\u003eThe Crystal and brushed steel bear visible micro-scratches from use in raking light, consistent with the age of the piece.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003e→ \u003ca href=\"\/en\/collections\/montres-seiko-vintage\"\u003eDiscover our vintage Seiko watches\u003c\/a\u003e\u003cbr\u003e→ \u003ca href=\"\/en\/collections\/montres-vintage-moins-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 Rectangular dress watch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReference:\u003c\/strong\u003e 7820-5130\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEstimated year:\u003c\/strong\u003e 1980s\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 7820\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 Steel (steel back), rectangular shape\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e 28mm (30mm with the crown)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLug to lug:\u003c\/strong\u003e 34mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThickness:\u003c\/strong\u003e 6.3mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLug width:\u003c\/strong\u003e 22mm\u003c\/li\u003e \n\u003cli\u003e\n\u003cstrong\u003eCrown :\u003c\/strong\u003e Steel, fluted, original\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDial :\u003c\/strong\u003e Black with a navy blue checked circle pattern, applied steel baton hour markers, medallion Seiko, original\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHands :\u003c\/strong\u003e Steel batons (hours, minutes), original\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCrystal :\u003c\/strong\u003e Mineral, very good condition\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBracelet :\u003c\/strong\u003e Genuine black crocodile leather, non-original\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBuckle :\u003c\/strong\u003e 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 Beautiful state of preservation. Clean dial, intact circle pattern. The Crystal and brushed steel show visible micro-scratches from use in raking light, consistent with the age of the piece.\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 Checked quartz movement, new battery, 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\u003chr\u003e\n\u003ch3\u003eFrequently asked questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eIs this rectangular Seiko a Cartier ?\u003c\/strong\u003e\u003cbr\u003eNo. This is an authentic Seiko, signed on the dial and engraved with reference 7820-5130. The rectangular steel case with its elaborately finished dial belongs to the common vocabulary of dress watches from the 1980s, adopted by many Japanese and Swiss houses. This piece claims nothing other than what it is, and the authenticity of its brand is guaranteed for life by Atelier Victor.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the circle dial on this Seiko ?\u003c\/strong\u003e\u003cbr\u003eIt is a black dial covered with an embossed mesh of small navy blue circles, which animates the entire surface. In the light, the pattern catches the reflections and shifts the tone from deep black to midnight blue. It is a dial treatment characteristic of refined Japanese dress watches, and an original detail specific to this piece.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs the Seiko caliber 7820 reliable ?\u003c\/strong\u003e\u003cbr\u003eYes. The 7820 is a high-end analog quartz movement, with two hands, produced in Japan in the 1980s. Its simple, slim construction makes it durable, and its maintenance in practice is limited to battery replacement. The movement in this example has been checked by our watchmaker and comes with a 1-year warranty.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs this Seiko 7820-5130 water-resistant ?\u003c\/strong\u003e\u003cbr\u003eNo. Water resistance is never guaranteed on a vintage watch: the original gaskets have aged and the case back pressure is no longer what it was on day one. Avoid the shower, the pool and the sea. However, simple contact with rainwater does not pose any difficulty.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs a 28mm rectangular case suitable for which wrist ?\u003c\/strong\u003e\u003cbr\u003eOn a rectangular watch, it is the Lug-to-lug that matters: 34mm here, which places the piece on wrists of about 15 to 18cm. This is the classic dress-watch format: discreet on a man's wrist, perfectly proportioned on a woman's wrist. Its 6.3mm thickness allows it to slip under a cuff.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e ","brand":"Seiko","offers":[{"title":"Default Title","offer_id":54241114358097,"sku":"701545 7820-5130","price":340.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0703\/8576\/2597\/files\/montre-seiko-7820-5130-acier-tank-cadran-cercles-1980s-atelier-victor-1.jpg?v=1783982973","url":"https:\/\/ateliervictor.co\/en\/products\/vintage-seiko-watch-7820-5130-stainless-steel-tank-circle-dial-1980s","provider":"Atelier Victor","version":"1.0","type":"link"}