{"product_id":"seikoセイコー-65s-matic-weekdater-ウィークデーター-cal-6218a","title":"SEIKO 65's \/ Matic Weekdater \/ Cal.6218A","description":"\u003ctable style=\"width: 100%; height: 548.625px;\" border=\"1\" width=\"100%\"\u003e\n\n\u003ctbody\u003e\n\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\n\u003cth bgcolor=\"#FFFEFC\" align=\"center\" colspan=\"2\" style=\"width: 99.5798%; height: 19.5938px;\"\u003e\u003cb\u003e\u003cspan color=\"#0F000D\" style=\"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 bgcolor=\"#FFFEFC\" align=\"center\" style=\"width: 6.30252%; height: 39.1875px;\"\u003e\u003cspan color=\"#0F000D\" size=\"2\" style=\"color: #0f000d; font-size: small;\"\u003eManufactured Year\u003c\/span\u003e\u003c\/th\u003e\n\n\u003ctd bgcolor=\"#FFFEFC\" style=\"width: 93.2773%; height: 39.1875px;\"\u003e\n\n\u003cp\u003e1965\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 bgcolor=\"#FFFEFC\" align=\"center\" style=\"width: 6.30252%; height: 58.7812px;\"\u003e\u003cspan color=\"#0F000D\" size=\"2\" style=\"color: #0f000d; font-size: small;\"\u003eMovement\u003c\/span\u003e\u003c\/th\u003e\n\n\u003ctd bgcolor=\"#FFFEFC\" style=\"width: 93.2773%; height: 58.7812px;\"\u003e\n\n\u003cspan lang=\"EN-US\"\u003eCal.6218A \/ 35 jewels \/ Automatic\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 bgcolor=\"#FFFEFC\" align=\"center\" style=\"width: 6.30252%; height: 58.7812px;\"\u003e\u003cspan color=\"#0F000D\" size=\"2\" style=\"color: #0f000d; font-size: small;\"\u003eCase Size\u003c\/span\u003e\u003c\/th\u003e\n\n\u003ctd bgcolor=\"#FFFEFC\" style=\"width: 93.2773%; height: 58.7812px;\"\u003e\n\n\u003cspan\u003eLength 43.3\u003c\/span\u003e\u003cspan\u003emm (including lugs) \/ Width 36.9mm\u003c\/span\u003e\u003cspan\u003e (including crown) \/ Thickness 11.6mm\u003c\/span\u003e\u003cspan\u003e \/ Lug width 19mm \/ Weight 53\u003c\/span\u003e\u003cspan\u003eg\u003c\/span\u003e\n\n\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr style=\"height: 58.7812px;\"\u003e\n\n\u003cth bgcolor=\"#FFFEFC\" align=\"center\" style=\"width: 6.30252%; height: 58.7812px;\"\u003e\u003cspan color=\"#0F000D\" size=\"2\" style=\"color: #0f000d; font-size: small;\"\u003eCase Material\u003c\/span\u003e\u003c\/th\u003e\n\n\u003ctd bgcolor=\"#FFFEFC\" style=\"width: 93.2773%; height: 58.7812px; text-align: left;\"\u003e SS (Stainless Steel)\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr style=\"height: 39.1875px;\"\u003e\n\n\u003cth bgcolor=\"#FFFEFC\" align=\"center\" style=\"width: 6.30252%; height: 39.1875px;\"\u003e\u003cspan color=\"#0F000D\" size=\"2\" style=\"color: #0f000d; font-size: small;\"\u003eAccessories\u003c\/span\u003e\u003c\/th\u003e\n\n\u003ctd bgcolor=\"#FFFEFC\" style=\"width: 93.2773%; height: 39.1875px;\"\u003e\u003cspan color=\"#0F000D\" size=\"2\" style=\"color: #0f000d; font-size: small;\"\u003eWatch body \/ RESUME original case \/ Our 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 bgcolor=\"#FFFEFC\" align=\"center\" style=\"width: 6.30252%; height: 19.5938px;\"\u003e\u003cspan color=\"#0F000D\" size=\"2\" style=\"color: #0f000d; font-size: small;\"\u003eCondition\u003c\/span\u003e\u003c\/th\u003e\n\n\u003ctd bgcolor=\"#FFFEFC\" style=\"width: 93.2773%; height: 19.5938px;\"\u003e\u003cspan color=\"#0F000D\" size=\"2\" style=\"color: #0f000d; font-size: small;\"\u003e Antique (Used) \u003c\/span\u003e\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr style=\"height: 39.1875px;\"\u003e\n\n\u003cth bgcolor=\"#FFFEFC\" align=\"center\" style=\"width: 6.30252%; height: 39.1875px;\"\u003e\u003cspan color=\"#0F000D\" size=\"2\" style=\"color: #0f000d; font-size: small;\"\u003eWater Resistance\u003c\/span\u003e\u003c\/th\u003e\n\n\u003ctd bgcolor=\"#FFFEFC\" style=\"width: 93.2773%; height: 39.1875px;\"\u003e\u003cspan color=\"#0F000D\" size=\"2\" style=\"color: #0f000d; font-size: small;\"\u003e Not waterproof \u003c\/span\u003e\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr style=\"height: 215.531px;\"\u003e\n\n\u003ctd align=\"center\" style=\"width: 6.30252%; height: 215.531px;\"\u003eNotes\u003c\/td\u003e\n\n\u003ctd style=\"width: 93.2773%; height: 215.531px;\"\u003e*This product will be overhauled after your order, so it will take approximately 1-2 months for shipping.\u003cbr\u003ePlease be aware of this.\u003cbr\u003e\u003cbr\u003e*The color may appear slightly different on screen than in real life. Please understand.\u003cbr\u003e\u003cbr\u003e*This product is also sold in physical stores. While we regularly update our inventory, there may be cases where the item you purchased is out of stock. Please note that if there is no possibility of restocking, your order may be canceled.\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\n\u003c\/tbody\u003e\n\n\n\u003c\/table\u003e\n\u003cp\u003e\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eIntroducing the 1965 Seiko \"Matic Weekdater.\"\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe Seiko Matic Weekdater is a model with a date and day display, born in the 1960s as Seiko sought to improve the practicality of automatic watches.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe Seiko Matic is one of Seiko's representative automatic watch series, evolving from the Self-dater with a date display to the Weekdater, which further added a day display.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eAt the time, the ability to check both the date and day on a wristwatch was not yet common, making it a significant enhancement to its convenience as an everyday tool.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\" style=\"layout-grid-mode: char; mso-layout-grid-align: none;\"\u003e\u003cstrong\u003e■Dial and Case Design\u003c\/strong\u003e\u003cspan lang=\"EN-US\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe dial is a silver dial with fine vertical hairline finishing.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eRather than a strong gloss finish, the fine lines bring out a metallic texture, giving the simple dial a calm appearance.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe \"SEIKO\" and \"Weekdater\" logos are placed at the 12 o'clock position.\u003cbr\u003e\u003c\/span\u003e\u003cspan\u003eAt the 6 o'clock position, the cursive \"Seikomatic\" and \"DIASHOCK 35 JEWELS\" inscriptions are present, conveying the elegant and practical presence characteristic of Seiko at the time.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe date display is at the 3 o'clock position, and the day display is at the 9 o'clock position.\u003cbr\u003e\u003c\/span\u003e\u003cspan\u003eUnlike typical day-date displays, the layout with the calendar split to the left and right is a major distinctive feature of the Seiko Matic Weekdater.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe indices are three-dimensional applied bar indices.\u003cbr\u003e\u003c\/span\u003e\u003cspan\u003eThe slightly raised center creates linear shadows depending on the angle of light, adding subtle depth to the simple dial.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe hands are sharp dolphin hands.\u003cbr\u003e\u003c\/span\u003e\u003cspan\u003eThey harmonize well with the clean dial design, creating an elegant atmosphere characteristic of Seiko in the 1960s.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe case is a stainless steel round case.\u003cbr\u003e\u003c\/span\u003e\u003cspan\u003eCombining a thin bezel with slightly wider lugs, it creates a substantial presence on the wrist despite being a classic round case.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe lugs have a sharp, linear form, and together with the case side lines, they achieve a balance of practicality and design typical of Seiko in the mid-1960s.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\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\/2026-07-03T181330.770.png?v=1783070939\" alt=\"\"\u003e\u003cbr\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe movement is an automatic Cal.6218A.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eIt is a 35-jewel automatic movement specifically for the Seiko Matic Weekdater, equipped with date and day displays.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe rotor bears the \"SEIKO\" and \"35 JEWELS\" engravings, indicating that Seiko at the time manufactured with both practicality and luxury in mind.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe unique calendar display with the date at 3 o'clock and the day at 9 o'clock on the dial is also a characteristic feature of models equipped with this movement.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eTypical of Seiko automatic watches from the mid-1960s, this movement is well-crafted and solidly equipped with the functions necessary for daily use.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\" style=\"layout-grid-mode: char; mso-layout-grid-align: none;\"\u003e\u003cstrong\u003e■Styling\u003cbr\u003e\u003c\/strong\u003e\u003cspan lang=\"EN-US\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eCase size: Length 43.3mm (including lugs) \/ Width 36.9mm (including crown) \/ Thickness 11.6mm \/ Weight 53g\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe elegant design, combining a silver dial with vertical hairline finishing and a stainless steel case, pairs well with formal attire such as shirts and jackets.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eWhen paired with a black leather strap, the dial's subdued atmosphere is enhanced, blending naturally with suits.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eOn the other hand, the date display at 3 o'clock and the day display at 9 o'clock serve as a nice accent, making it easy to incorporate into casual outfits like sweaters, cardigans, and denim.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWith its unique individuality characteristic of the Seiko Matic Weekdater within a simple design, it can be worn for a wide range of occasions, from everyday use to slightly more formal settings.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\" style=\"layout-grid-mode: char; mso-layout-grid-align: none;\"\u003e\u003cstrong\u003e■Condition\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eRegarding the condition, there are minor scratches on the case from use, but there are no noticeable dents or major damage, maintaining a good condition considering its age.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe crystal was replaced with an original dead stock crystal upon arrival.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe dial, hands, and indices are also in good condition, allowing you to fully appreciate the elegant appearance of the silver dial.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe movement will also be delivered after maintenance by us, so you can use it with peace of mind.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan lang=\"EN-US\"\u003e\u003cstrong\u003e■To purchase with confidence\u003cbr\u003e\u003cbr\u003e\u003c\/strong\u003e\u003cspan\u003eAll watches handled by us are inspected internally by a specialized watch repair technician upon arrival and are sold only after being determined to be authentic, so you can use our services with peace of confidence.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003eWhen purchasing a watch, we will attach a new leather strap.\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003ePlease select your desired color from the order selection tab.\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e*For watches with original straps or metal bands, the leather strap will be sent separately as a spare and not attached to the watch.\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eA dedicated watch case will also be sent at the time of shipment.\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\" style=\"layout-grid-mode: char; mso-layout-grid-align: none;\"\u003e\u003cspan lang=\"EN-US\"\u003e \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003cspan color=\"#ff0000\" size=\"1\" style=\"color: #ff0000; font-size: xx-small;\"\u003e●Important information after purchasing antique watches. Please read carefully.●\u003cbr\u003e\u003cbr\u003eAt RESUME, when selling antique watches, we do not deliver them immediately upon order.\u003cbr\u003eInstead, we request an overhaul (hereinafter \"OH\") from a specialized craftsman, and deliver the watch after the OH is completed. (This takes approximately 1-2 months.)\u003cbr\u003e\u003cbr\u003eA specialized craftsman with a Grade 1 watch repair technician qualification will completely disassemble the watch, replace consumable parts such as internal gaskets, clean it, lubricate it,\u003cbr\u003eand perform a thorough OH, maintaining an accuracy of about ±1 minute per day.\u003cbr\u003eWhen delivering, we will also send our unique OH certificate, which explains what kind of work was done during the OH, as well as photos of the movement disassembly and maintenance.\u003cbr\u003e\u003cbr\u003eOf course, due to the nature of the product being used, there is no absolute guarantee that it will not break, but we take this approach so that you can enjoy the original performance of the watch\u003cbr\u003eand use it with peace of mind in the future. We appreciate your understanding.\u003cbr\u003e\u003cbr\u003eWhen purchasing a product, a 1-year warranty period is provided depending on the model. Even for products past their warranty period, repairs are accepted 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":"black","offer_id":51565288358183,"sku":null,"price":105600.0,"currency_code":"JPY","in_stock":true},{"title":"Brown","offer_id":51565288390951,"sku":null,"price":105600.0,"currency_code":"JPY","in_stock":true},{"title":"Navy","offer_id":51565288423719,"sku":null,"price":105600.0,"currency_code":"JPY","in_stock":true},{"title":"wine","offer_id":51565288456487,"sku":null,"price":105600.0,"currency_code":"JPY","in_stock":true},{"title":"Chestnut","offer_id":51565288489255,"sku":null,"price":105600.0,"currency_code":"JPY","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0762\/8980\/2535\/files\/2026-07-03T181757.982.png?v=1783070928","url":"https:\/\/vintage-watch-resume.com\/en\/products\/seiko%e3%82%bb%e3%82%a4%e3%82%b3%e3%83%bc-65s-matic-weekdater-%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-6218a","provider":"RESUME","version":"1.0","type":"link"}