{"product_id":"montre-seiko-dolce-5s21-6010-trotteuse-glissante-1990","title":"Vintage Seiko Dolce 5S21-6010 — Smooth Sweeping Seconds Hand (1990) ","description":"\u003ch2\u003eSeiko Dolce vintage: a quartz with sweeping seconds hand\u003c\/h2\u003e\n\u003cp\u003eThis \u003cstrong\u003eSeiko Dolce watch\u003c\/strong\u003e is an elegant two-tone dress watch, with a rare and immediately visible distinction: its seconds hand does not “tick,” it sweeps. Powered by the Seiko 5S21 quartz with continuous sweep, it mimics the fluid motion of an automatic watch. Produced around 1990, in a round steel case enhanced with gold, it wears beautifully on both a man’s and a woman’s wrist. A characterful piece for the discerning collector.\u003c\/p\u003e\n\u003cp\u003eThe heart of this Seiko is its greatest asset: the \u003cstrong\u003e5S21 calibre\u003c\/strong\u003e, a quartz movement with a \u003cstrong\u003esweeping seconds hand\u003c\/strong\u003e developed by Seiko in the late 1980s. Where a conventional quartz movement steps forward in one-second increments, the 5S21 transforms this impulse into a perfectly fluid sweep, thanks to a spiral spring and a viscous regulator. On the wrist, the illusion is total: one would swear it is a mechanical watch. Produced in limited quantities and now sought after, this rare calibre bears witness to Seiko’s research, which would later lead to Spring Drive.\u003c\/p\u003e\n\u003cp\u003eThe \u003cstrong\u003esilver dial\u003c\/strong\u003e, with fine vertical stripes and a subtle shimmering effect, catches the light delicately. It bears the signature “Seiko” and the name “Dolce”, a Roman numeral at 12 o’clock and slender applied gilt baton indexes. The round brushed steel case is enhanced by a bezel and lugs \u003cstrong\u003egold-plated\u003c\/strong\u003e, in a typically dressy two-tone spirit. The domed sapphire Crystal, particularly scratch-resistant, protects the whole.\u003c\/p\u003e\n\u003cp\u003eWith its \u003cstrong\u003e32.5mm case\u003c\/strong\u003e and slim profile, this vintage watch wears beautifully on both a man’s and a woman’s wrist — a true \u003cstrong\u003eUnisex watch\u003c\/strong\u003e. The original dial and hands are in very fine condition, as is the sapphire Crystal. It is fitted with a genuine black crocodile leather strap, not original, with a steel pin Buckle.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThree points to note\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eVintage two-tone Seiko Dolce watch (steel and gold-plated), shimmering silver dial, domed sapphire Crystal (circa 1990).\u003c\/li\u003e\n\u003cli\u003eRare 5S21 calibre with sweeping seconds hand: a fluid-sweep quartz that mimics a mechanical movement.\u003c\/li\u003e\n\u003cli\u003eUnisex watch (men’s and women’s), slim and dressy profile; a sought-after piece for Seiko enthusiasts.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003e→ Discover our \u003ca href=\"\/en\/collections\/montres-vintage-japonaises\"\u003evintage Japanese watches\u003c\/a\u003e\u003c\/em\u003e\u003cbr\u003e\u003cem\u003e→ View our \u003ca href=\"\/en\/collections\/montres-vintage-moins-500\"\u003evintage 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 Dolce (SACW012), two-tone\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReference:\u003c\/strong\u003e 5S21-6010\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEstimated year:\u003c\/strong\u003e\u0026nbsp;1990\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 with sweeping seconds hand, Seiko 5S21A calibre (continuous sweep)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFunctions:\u003c\/strong\u003e Hours, minutes, seconds (sweeping seconds hand)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCase:\u003c\/strong\u003e Brushed steel, gold-plated bezel and lugs (steel caseback), round shape\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e 32.5mm wide (35mm with the crown)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLug to lug:\u003c\/strong\u003e 36mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThickness:\u003c\/strong\u003e 6.8mm (Crystal included)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLug width :\u003c\/strong\u003e 17mm\u003c\/li\u003e \n\u003cli\u003e\n\u003cstrong\u003eCrown:\u003c\/strong\u003e Gold-plated with a black cabochon, original\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDial:\u003c\/strong\u003e Silvered, fine vertical stripes (sparkling effect), Roman numeral XII, applied gold baton hour markers, signatures « Seiko » and « Dolce », original\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHands:\u003c\/strong\u003e Hours and minutes, fine central sweeping seconds hand, original\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCrystal:\u003c\/strong\u003e Domed sapphire crystal, very good condition\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBracelet:\u003c\/strong\u003e Genuine black crocodile leather, not original\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBuckle:\u003c\/strong\u003e Steel pin buckle, not 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 condition. Original dial and Crystal sapphire crystal in very good condition.\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, one-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\u003eWhy does the seconds hand of this Seiko sweep instead of ticking?\u003c\/strong\u003e\u003cbr\u003eThanks to its 5S21 calibre, a quartz movement with a sweeping seconds hand. A hairspring and a viscous regulator transform the motor impulse into a continuous, fluid sweep, very close to that of a mechanical watch — even though it is a quartz movement.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs the 5S21 calibre rare?\u003c\/strong\u003e\u003cbr\u003eYes. Produced by Seiko from the late 1980s and now discontinued, this continuous-sweep movement was made only in limited quantities. It is particularly sought after by enthusiasts, especially as it forms part of the research by Seiko that would later lead to Spring Drive technology.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the Seiko Dolce line?\u003c\/strong\u003e\u003cbr\u003eDolce is Seiko's collection of extra-thin dress watches, designed to offer elegant and refined timepieces. This two-tone version, in steel and gold-plated, is a fine example: understated, slim, and dressy.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs the Crystal resistant?\u003c\/strong\u003e\u003cbr\u003eYes. This watch is fitted with a domed sapphire crystal Crystal, the most scratch-resistant material after diamond. The dial is thus protected and remains legible over time.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs this Seiko watch suitable for a man or a woman?\u003c\/strong\u003e\u003cbr\u003eIt is a unisex watch. Its 32.5 mm round case suits both masculine and feminine wrists. Its dressy, two-tone character makes it an elegant watch for every occasion.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e ","brand":"Seiko","offers":[{"title":"Default Title","offer_id":54110104093009,"sku":"050072 5S21-6010","price":320.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0703\/8576\/2597\/files\/VD_03268.jpg?v=1782064105","url":"https:\/\/ateliervictor.co\/en\/products\/vintage-seiko-dolce-5s21-6010-sweeping-seconds-1990","provider":"Atelier Victor","version":"1.0","type":"link"}