{"product_id":"grand-seiko-hi-beat-cap-gold-automatic-25石-ref-5645-7010-セイコー-1971年-グランドセイコー-デイト-自動巻-保あり-d65246","title":"GRAND SEIKO hi-beat CAP GOLD automatic 25 jewels ref. 5645-7010 Seiko 1971 Grand Seiko Date Automatic With Warranty $D65246","description":"\u003cp\u003e【Product Description】\u003cbr\u003eThank you for viewing this item.\u003c\/p\u003e\n\u003cp\u003e1971 56GS Grand Seiko Hi-Beat CAP GOLD Ref. 5645-7010\u003c\/p\u003e\n\u003cp\u003eWhat is CAP GOLD?\u003cbr\u003eCap gold is a technique of covering or bonding a base metal with a very thick gold plate (approx. 80-260 microns), which is much thicker than gold plating or common gold-filled (gold-plated) processes.\u003c\/p\u003e\n\u003cp\u003e【Product Features】\u003cbr\u003eThis is a \"56GS (56 Grand Seiko)\" from 1971.\u003cbr\u003eIt is known as the last automatic winding series in the history of vintage Grand Seiko, which dates back to the 1960s.\u003cbr\u003eIt features a sharp case design that inherits the \"Seiko Style\" and a high-precision hi-beat movement (28,800 vibrations). The beautiful patina that has appeared on the dial after 50 years tells a unique history that only this individual piece possesses.\u003c\/p\u003e\n\u003cp\u003e【Operation Confirmed \u0026amp; Cleaned】\u003cbr\u003eThis watch had no operational problems from the moment it was acquired.\u003cbr\u003eThe gaskets have been replaced, the crystal has been replaced with an aftermarket compatible part, and the crown has been replaced with a genuine part (genuine crowns are hard to find).\u003cbr\u003eTo ensure our customers can use it with peace of mind, we conducted a 48-hour operation check and cleaned it before listing.\u003cbr\u003eTimegrapher measurements show a daily rate of 1 to -0 seconds and an amplitude of 290 degrees, maintaining extremely stable accuracy for an individual piece that is half a century old.\u003cbr\u003eIt comes with a 1-year warranty from the date of arrival (domestic Japan warranty).\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e【Main Specifications】\u003cbr\u003eBrand: GRAND SEIKO\u003cbr\u003eModel: 56GS\u003cbr\u003eModel Number (Reference): 5645-7010\u003cbr\u003eManufacturing Year: 1971\u003cbr\u003eSerial Number: 10**\u003cbr\u003eMovement: Automatic (Cal. 5645A \/ Hi-Beat)\u003cbr\u003eCase Size: Approx. 36.7mm (width) \/ Approx. 42.4mm (height) \/ Approx. 10.7mm (thickness)\u003cbr\u003eDial Color: White (discolored due to age-related tanning)\u003cbr\u003eMaterial: Stainless Steel CAP GOLD\u003cbr\u003eFunctions: Date display, hacking function (seconds hand stops)\u003cbr\u003eWrist Size: Max. approx. 19cm\u003cbr\u003eStrap: SEIKO leather strap (non-original, unused) Buckle is a used aftermarket part.\u003cbr\u003eAccessories: None (watch body only)\u003c\/p\u003e\n\u003cp\u003e---\u003c\/p\u003e\n\u003cp\u003eDetailed Condition\u003cbr\u003eAccuracy: Daily rate 0 to 1 second \/ Beat error 0.3ms \/ Amplitude 296 degrees (very good reference values)\u003c\/p\u003e\n\u003cp\u003e《Condition Details》\u003cbr\u003e・Glass: Replaced with an aftermarket compatible part.\u003cbr\u003e・Case: Minor scratches, no noticeable damage.\u003cbr\u003e・Bezel: Minor scratches, no noticeable damage.\u003cbr\u003e・Caseback: Minor scratches, GS medallion intact, no noticeable damage.\u003cbr\u003e・Strap: (SEIKO made) Not original. Brand new, unused.\u003cbr\u003e・Hands\/Dial: Age spots and tanning. The dial, over 50 years old, is in a unique condition.\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e【Notes】\u003cbr\u003eCharacteristics of vintage items: This is a mechanical watch from the 1970s. Although it is currently running very accurately, please understand that it is a vintage item based on our display standards (within 1-2 minutes daily rate).\u003cbr\u003eFor practical use, we recommend regular maintenance.\u003cbr\u003eWater resistance: Please treat it as non-water resistant. Assume that the original water resistance (Water Resistant) is no longer maintained and be very careful about water exposure and humidity.\u003cbr\u003eCalendar operation: Due to the characteristics of the 56 series movement, absolutely avoid quick-setting the calendar between 8 PM and 4 AM (this can cause malfunctions).\u003c\/p\u003e","brand":"大山商店","offers":[{"title":"Default Title","offer_id":42639955329099,"sku":"D65246","price":250000.0,"currency_code":"JPY","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0280\/9914\/9899\/files\/20260609_114612_DSC_3511.jpg?v=1780987747","url":"https:\/\/008ma.com\/en\/products\/grand-seiko-hi-beat-cap-gold-automatic-25%e7%9f%b3-ref-5645-7010-%e3%82%bb%e3%82%a4%e3%82%b3%e3%83%bc-1971%e5%b9%b4-%e3%82%b0%e3%83%a9%e3%83%b3%e3%83%89%e3%82%bb%e3%82%a4%e3%82%b3%e3%83%bc-%e3%83%87%e3%82%a4%e3%83%88-%e8%87%aa%e5%8b%95%e5%b7%bb-%e4%bf%9d%e3%81%82%e3%82%8a-d65246","provider":"大山商店","version":"1.0","type":"link"}