{"product_id":"seikoセイコー-64s-matic-weekdater-マチックウィークデーター-cal-6206a","title":"SEIKO (Seiko) 64's \/ Matic Weekdater (Matic Weekdater) \/ Cal.6206A","description":"\u003ctable width=\"100%\" border=\"1\" style=\"width: 100%; height: 548.625px;\"\u003e\n\n\u003ctbody\u003e\n\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\n\u003cth style=\"width: 99.7666%; height: 19.5938px;\" colspan=\"2\" align=\"center\" bgcolor=\"#FFFEFC\"\u003e\u003cb\u003e\u003cspan style=\"color: #0f000d;\" color=\"#0F000D\"\u003eProduct Details\u003c\/span\u003e\u003c\/b\u003e\u003c\/th\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr style=\"height: 39.1875px;\"\u003e\n\n\u003cth style=\"width: 6.30105%; height: 39.1875px;\" align=\"center\" bgcolor=\"#FFFEFC\"\u003e\u003cspan style=\"color: #0f000d; font-size: small;\" size=\"2\" color=\"#0F000D\"\u003eYear of Manufacture\u003c\/span\u003e\u003c\/th\u003e\n\n\u003ctd style=\"width: 93.4656%; height: 39.1875px;\" bgcolor=\"#FFFEFC\"\u003e\n\n\u003cp\u003eManufactured in 1964\u003c\/p\u003e\n\n\n\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr style=\"height: 58.7812px;\"\u003e\n\n\u003cth style=\"width: 6.30105%; height: 58.7812px;\" align=\"center\" bgcolor=\"#FFFEFC\"\u003e\u003cspan style=\"color: #0f000d; font-size: small;\" size=\"2\" color=\"#0F000D\"\u003eMovement\u003c\/span\u003e\u003c\/th\u003e\n\n\u003ctd style=\"width: 93.4656%; height: 58.7812px;\" bgcolor=\"#FFFEFC\"\u003e\n\n\u003cspan lang=\"EN-US\"\u003eCal.6206A \/ Automatic \/ 26 Jewels\u003c\/span\u003e\u003cbr\u003e\n\n\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr style=\"height: 58.7812px;\"\u003e\n\n\u003cth style=\"width: 6.30105%; height: 58.7812px;\" align=\"center\" bgcolor=\"#FFFEFC\"\u003e\u003cspan style=\"color: #0f000d; font-size: small;\" size=\"2\" color=\"#0F000D\"\u003eCase Size\u003c\/span\u003e\u003c\/th\u003e\n\n\u003ctd style=\"width: 93.4656%; height: 58.7812px;\" bgcolor=\"#FFFEFC\"\u003e\n\n\u003cp\u003e\u003cspan\u003e43.3 mm (H) (including lugs)\u003c\/span\u003e\u003cspan\u003e \/ 37 mm (W) (including crown)\u003c\/span\u003e\u003cspan\u003e \/ 11.4 mm (T)\u003c\/span\u003e\u003cspan\u003e \/ Lug width 19 mm \/ Weight 48\u003c\/span\u003e\u003cspan\u003e g (including strap)\u003c\/span\u003e\u003c\/p\u003e\n\n\n\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr style=\"height: 58.7812px;\"\u003e\n\n\u003cth style=\"width: 6.30105%; height: 58.7812px;\" align=\"center\" bgcolor=\"#FFFEFC\"\u003e\u003cspan style=\"color: #0f000d; font-size: small;\" size=\"2\" color=\"#0F000D\"\u003eCase Material\u003c\/span\u003e\u003c\/th\u003e\n\n\u003ctd style=\"width: 93.4656%; height: 58.7812px; text-align: left;\" bgcolor=\"#FFFEFC\"\u003e SS (Stainless Steel)\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr style=\"height: 39.1875px;\"\u003e\n\n\u003cth style=\"width: 6.30105%; height: 39.1875px;\" align=\"center\" bgcolor=\"#FFFEFC\"\u003e\u003cspan style=\"color: #0f000d; font-size: small;\" size=\"2\" color=\"#0F000D\"\u003eAccessories\u003c\/span\u003e\u003c\/th\u003e\n\n\u003ctd style=\"width: 93.4656%; height: 39.1875px;\" bgcolor=\"#FFFEFC\"\u003e\u003cspan style=\"color: #0f000d; font-size: small;\" size=\"2\" color=\"#0F000D\"\u003eWatch \/ RESUME Original Case \/ Our Store Warranty (1-Year Free Warranty)\u003c\/span\u003e\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\n\u003cth style=\"width: 6.30105%; height: 19.5938px;\" align=\"center\" bgcolor=\"#FFFEFC\"\u003e\u003cspan style=\"color: #0f000d; font-size: small;\" size=\"2\" color=\"#0F000D\"\u003eCondition\u003c\/span\u003e\u003c\/th\u003e\n\n\u003ctd style=\"width: 93.4656%; height: 19.5938px;\" bgcolor=\"#FFFEFC\"\u003e\u003cspan style=\"color: #0f000d; font-size: small;\" size=\"2\" color=\"#0F000D\"\u003eAntique (Used) \u003c\/span\u003e\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr style=\"height: 39.1875px;\"\u003e\n\n\u003cth style=\"width: 6.30105%; height: 39.1875px;\" align=\"center\" bgcolor=\"#FFFEFC\"\u003e\u003cspan style=\"color: #0f000d; font-size: small;\" size=\"2\" color=\"#0F000D\"\u003eWater Resistance\u003c\/span\u003e\u003c\/th\u003e\n\n\u003ctd style=\"width: 93.4656%; height: 39.1875px;\" bgcolor=\"#FFFEFC\"\u003e\u003cspan style=\"color: #0f000d; font-size: small;\" size=\"2\" color=\"#0F000D\"\u003eNot Water-Resistant \u003c\/span\u003e\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr style=\"height: 215.531px;\"\u003e\n\n\u003ctd style=\"width: 6.30105%; height: 215.531px;\" align=\"center\"\u003eNote\u003c\/td\u003e\n\n\u003ctd style=\"width: 93.4656%; height: 215.531px;\"\u003e※This product will undergo an overhaul after your order is placed, so shipping will take approximately 1–2 months.\u003cbr\u003eThank you for your understanding.\u003cbr\u003e\u003cbr\u003e※Please note that the actual product may appear slightly different in color compared to the screen.\u003cbr\u003e\u003cbr\u003e※This item is also sold in our store. Although we update our inventory levels regularly, the item you purchase may occasionally sell out. Please note that if the item is not expected to be back in stock, we may have to cancel your order.\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\n\u003c\/tbody\u003e\n\n\n\u003c\/table\u003e\n\u003cp class=\"PDq2pG_selectionAnchorContainer\"\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp class=\"PDq2pG_selectionAnchorContainer\"\u003eIntroducing the 1964 Seiko \"Matic Week-Date\".\u003cspan class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-pm-slice=\"1 1 []\"\u003eIntroduced in 1960, Seiko Matic is one of Seiko's flagship automatic watch series.\u003cbr\u003eIn 1963, the \"Week-Date\" was introduced, displaying both the date and day of the week.\u003cbr\u003eIt featured a calendar function that allowed users to check the date and day of the week simultaneously and was developed from the early Cal.400 model.\u003cbr\u003eIn 1964, models equipped with the Cal.6206A were added, and this piece was manufactured that same year.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp style=\"layout-grid-mode: char; mso-layout-grid-align: none;\" class=\"MsoNormal\"\u003e\u003cstrong\u003e■Dial and Case Design\u003c\/strong\u003e\u003cspan lang=\"EN-US\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe center of the silver dial features a sunray finish, creating radial reflections depending on how the light hits it.\u003cbr\u003eThe outer minute track has a different finish, giving the dial a distinctive look.\u003cbr\u003eThe three-dimensional applied bar indices and angled dauphine hands catch the light, adding depth to the watch's refined appearance.\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eThe calendar features a date window at 3 o'clock and a day-of-the-week window at 6 o'clock.\u003cbr\u003eUnlike typical day-date models that display the day and date side by side, this design distributes the displays at the top and bottom of the dial.\u003cbr\u003eBy placing the day display at 6 o'clock, the calendar display is naturally integrated into the overall composition of the dial.\u003cbr\u003eThe three-dimensional window frames make each display stand out.\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eThe rounded case is combined with sharp, angular lugs.\u003cbr\u003eThe stepped design from the bezel to the side of the case tightens the silhouette and adds character to the round case's understated appearance.\u003cbr\u003eThe crown is set within the case at 4 o'clock, giving the side of the case a clean look.\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\u003cstrong\u003e■Movement\u003cbr\u003e\u003cbr\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0762\/8980\/2535\/files\/2026-11-10T195751.963.png?v=1794308978\" alt=\"\"\u003e\u003cbr\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-pm-slice=\"1 1 []\"\u003eThe Cal.6206A is a 26-jewel automatic movement.\u003cbr\u003eThe mainspring is wound by the rotation of the rotor, and the date can be advanced quickly by operating the crown.\u003cbr\u003eThe day of the week is switched by advancing the hand, using a different operation method from the date.\u003cbr\u003e\u003cbr\u003eIt is equipped with Diashock shock protection, and the dial is also marked \"DIASHOCK 26 JEWELS\".\u003cbr\u003eThe rotor shown in the photo is engraved with \"SEIKO 26 JEWELS\", and its gold finish adds color to the movement's appearance.\u003c\/p\u003e\n\u003cp style=\"layout-grid-mode: char; mso-layout-grid-align: none;\" class=\"MsoNormal\"\u003e\u003cstrong\u003e\u003cbr\u003e■Styling\u003cbr\u003e\u003c\/strong\u003e\u003cspan lang=\"EN-US\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe case size is 43.3 mm (H) (including lugs) \/ 37 mm (W) (including crown) \/ 11.4 mm (T) \/ 48 g (including strap)\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis piece features a subdued color scheme, combining a silver dial and stainless steel case with a black leather strap.\u003cbr\u003eIt pairs well with a navy jacket, white shirt, and charcoal gray trousers, highlighting the brightness of the dial.\u003cbr\u003eMatching the strap and shoes in black will give the overall look a cohesive finish.\u003c\/p\u003e\n\u003cp\u003eFor a casual look, we also recommend pairing it with an Oxford shirt, beige chinos, or dark denim.\u003cbr\u003eBecause the day and date are positioned separately on the dial, it pairs well with simple, understated outfits, allowing the unique layout to stand out.\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp style=\"layout-grid-mode: char; mso-layout-grid-align: none;\" class=\"MsoNormal\"\u003e\u003cstrong\u003e■Condition\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cdiv class=\"qMYqUG_convSearchResultHighlightRoot\"\u003e\n\n\u003cdiv class=\"\"\u003e\n\n\u003csection class=\"text-token-text-primary w-full focus:outline-none has-data-writing-block:pointer-events-none [\u0026amp;:has([data-writing-block])\u0026gt;*]:pointer-events-auto R6Vx5W_threadScrollVars scroll-mb-[calc(var(--scroll-root-safe-area-inset-bottom,0px)+var(--thread-response-height))] scroll-mt-[calc(var(--header-height)+min(200px,max(70px,20svh)))]\" dir=\"auto\"\u003e\n\u003cdiv class=\"text-base my-auto mx-auto pb-8 [--thread-content-margin:var(--thread-content-margin-xs,calc(var(--spacing)*4))] @w-sm\/main:[--thread-content-margin:var(--thread-content-margin-sm,calc(var(--spacing)*6))] @w-lg\/main:[--thread-content-margin:var(--thread-content-margin-lg,calc(var(--spacing)*16))] px-(--thread-content-margin)\"\u003e\n\n\u003cdiv class=\"[--thread-content-max-width:40rem] @w-lg\/main:[--thread-content-max-width:48rem] mx-auto max-w-(--thread-content-max-width) flex-1 group\/turn-messages focus-visible:outline-hidden @[53.5rem]\/main:[--thread-content-max-width:48rem] relative flex w-full min-w-0 flex-col agent-turn\"\u003e\n\n\u003cdiv class=\"flex max-w-full flex-col gap-4 grow\"\u003e\n\n\u003cdiv dir=\"auto\" class=\"min-h-8 text-message relative flex w-full flex-col items-end gap-2 text-start break-words whitespace-normal outline-none keyboard-focused:focus-ring [.text-message+\u0026amp;]:mt-1\"\u003e\n\n\u003cdiv class=\"flex w-full flex-col gap-1 empty:hidden\"\u003e\n\n\u003cdiv class=\"LR5Y_W_content markdown prose dark:prose-invert wrap-break-word w-full light markdown-new-styling\"\u003e\n\n\u003cp data-pm-slice=\"1 1 []\"\u003eNo noticeable damage is visible on the case.\u003cbr\u003eThere are some stain-like changes near the 5 and 6 o'clock positions on the dial, but they do not affect readability.\u003cbr\u003eThe movement runs smoothly.\u003c\/p\u003e\n\n\u003cp data-pm-slice=\"1 1 []\"\u003e\u003cbr\u003e\u003c\/p\u003e\n\n\n\u003c\/div\u003e\n\n\n\u003c\/div\u003e\n\n\n\u003c\/div\u003e\n\n\n\u003c\/div\u003e\n\n\n\u003c\/div\u003e\n\n\n\u003c\/div\u003e\n\n\u003c\/section\u003e\n\n\u003c\/div\u003e\n\n\n\u003c\/div\u003e\n\u003cp\u003e\u003cspan lang=\"EN-US\"\u003e\u003cstrong\u003e■For Your Peace of Mind\u003cbr\u003e\u003cbr\u003e\u003c\/strong\u003e\u003cspan\u003eAll watches we sell undergo an internal inspection by a professional watchmaker upon arrival. We only sell items that we have determined to be authentic, so you can shop with confidence.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003eWe will attach a new leather strap and deliver it to you when you purchase a watch.\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003ePlease select your preferred color from the order options tab.\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e※For watches with original straps or metal bands, the leather strap will not be attached but will be sent separately as a spare.\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eWe will also include a dedicated watch case when shipping.\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"layout-grid-mode: char; mso-layout-grid-align: none;\" class=\"MsoNormal\"\u003e\u003cspan lang=\"EN-US\"\u003e \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003cspan style=\"color: #ff0000; font-size: xx-small;\" size=\"1\" color=\"#ff0000\"\u003e●Please be sure to read the following information after purchasing an antique watch●\u003cbr\u003e\u003cbr\u003eAt RESUME, when selling antique watches, we do not deliver them immediately upon order.\u003cbr\u003eInstead, we request a professional watchmaker to perform an overhaul (hereinafter OH), and deliver the watch after the OH is complete. (The process takes approximately 1–2 months.)\u003cbr\u003e\u003cbr\u003eA professional watchmaker with a first-class watch repair qualification will completely disassemble the watch, replace consumable parts such as internal gaskets, clean it, and lubricate it.\u003cbr\u003eThe watch will undergo a thorough OH and be adjusted to within approximately ±1 minute per day.\u003cbr\u003eWe will also include our store's original OH certificate, detailing the work performed, along with photos of the movement disassembled\u003cbr\u003eand serviced.\u003cbr\u003e\u003cbr\u003eOf course, due to the nature of pre-owned products, we cannot guarantee that they will never break. However, we provide this level of service so that you can enjoy the watch's original performance\u003cbr\u003eand use it with peace of mind in the future. Thank you for your understanding.\u003cbr\u003e\u003cbr\u003eDepending on the model, we offer a 1-year warranty at the time of purchase. Even after the warranty period has expired, we still offer repair services for a fee.\u003cbr\u003eIf you do not have a repair shop nearby, please feel free to contact us.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"RESUME","offers":[{"title":"Scotchgard: Black","offer_id":52573658022183,"sku":null,"price":96800.0,"currency_code":"JPY","in_stock":true},{"title":"Scotchgard: Brown","offer_id":52573658054951,"sku":null,"price":96800.0,"currency_code":"JPY","in_stock":true},{"title":"Scotchgard: Navy","offer_id":52573658087719,"sku":null,"price":96800.0,"currency_code":"JPY","in_stock":true},{"title":"Scotchgard: Wine","offer_id":52573658120487,"sku":null,"price":96800.0,"currency_code":"JPY","in_stock":true},{"title":"Scotchgard: Chestnut","offer_id":52573658153255,"sku":null,"price":96800.0,"currency_code":"JPY","in_stock":true},{"title":"MIMOSA: Black","offer_id":52573658186023,"sku":null,"price":96800.0,"currency_code":"JPY","in_stock":true},{"title":"MIMOSA: Grey","offer_id":52573658218791,"sku":null,"price":96800.0,"currency_code":"JPY","in_stock":true},{"title":"MIMOSA: Brown","offer_id":52573658251559,"sku":null,"price":96800.0,"currency_code":"JPY","in_stock":true},{"title":"MIMOSA: Dark Brown","offer_id":52573658284327,"sku":null,"price":96800.0,"currency_code":"JPY","in_stock":true},{"title":"KID: Black","offer_id":52573658317095,"sku":null,"price":96800.0,"currency_code":"JPY","in_stock":true},{"title":"KID: Khaki","offer_id":52573658349863,"sku":null,"price":96800.0,"currency_code":"JPY","in_stock":true},{"title":"KID: Orc","offer_id":52573658382631,"sku":null,"price":96800.0,"currency_code":"JPY","in_stock":true},{"title":"KID: Wine","offer_id":52573658415399,"sku":null,"price":96800.0,"currency_code":"JPY","in_stock":true},{"title":"KID: Dark Brown","offer_id":52573658448167,"sku":null,"price":96800.0,"currency_code":"JPY","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0762\/8980\/2535\/files\/2026-11-10T200058.510.png?v=1794308969","url":"https:\/\/vintage-watch-resume.com\/en\/products\/seiko%e3%82%bb%e3%82%a4%e3%82%b3%e3%83%bc-64s-matic-weekdater-%e3%83%9e%e3%83%81%e3%83%83%e3%82%af%e3%82%a6%e3%82%a3%e3%83%bc%e3%82%af%e3%83%87%e3%83%bc%e3%82%bf%e3%83%bc-cal-6206a","provider":"RESUME","version":"1.0","type":"link"}