{"product_id":"grand-seiko-hammered-steel-5646-7040","title":"Grand Seiko “Hammered Steel” 5646-7040","description":"\u003cp\u003e\u003cstrong\u003eModel\u003c\/strong\u003e: Grand Seiko “Hammered Steel” 5646-7040\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eYear\u003c\/strong\u003e: June 1973\u003c\/p\u003e\n\u003ch2\u003eFeatures:\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eThe Collection. \u003c\/strong\u003ePick any 56GS calibre and you’ll have an excellent vintage watch on your wrist - but the 5646-7040 on offer today has a few standout elements that set it apart from the pack.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThe Production.\u003c\/strong\u003e To start with, it was only produced for a single month. I know, that’s a bizarre claim to make - but it’s supposedly true. Even anecdotally, whenever I spot a Hammered Steel in the wild, the serial number always starts with a 36 - meaning June 1973. Seiko produced the dozens of other 56GS pieces over years, not even just months. And while it was Grand Seiko’s final collection before closing its mechanical doors in 1975 due to the Quartz “Crisis”, it didn’t stop producing other 56GS models until the very end. \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThe Dial.\u003c\/strong\u003e This is the only vintage Grand Seiko to feature Arabic numerals. To clarify - not just the only 56GS, but the only vintage Grand Seiko, full stop. 134 watches, but only one with numbered hour markers. \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThe Calendar Wheel. \u003c\/strong\u003eWhy are Saturdays blue and Sundays red, as shown above, on Seiko day wheels? Red symbolises a day of closure, whereas blue was chosen (from the limited CMYK palette available to printing presses at the time) to represent a half-day of work. You’ll often see the existence of the coloured days being linked to the 1973 Oil Crisis, but that’s a myth. The existence of the 6246-9001 proves Seiko adopted blue Saturdays as early as 1967 - and possibly even earlier. Blue Saturdays actually stem from a societal shift in the early 1960s, when Japan began transitioning away from the traditional six-day work week.\u003cstrong\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch2\u003eSpecifications:\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eThe Condition\u003c\/strong\u003e: In very good condition overall. Just serviced. The hammered surfaces are in beautiful condition, and the watch is completely unpolished. The flat, unhammered sides are marked. A small piece of the gold medallion has fallen off. \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eScope\u003c\/strong\u003e: No box or papers\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMovement\u003c\/strong\u003e: 5646A Automatic with Quickset and Dual Languages\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDimensions:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eCase Width: 35.5mm\u003c\/li\u003e\n\u003cli\u003eLug to Lug: 40.3mm\u003c\/li\u003e\n\u003cli\u003eCase Thickness: 10.1mm\u003c\/li\u003e\n\u003cli\u003eLug Width: 18mm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0788\/8977\/9534\/files\/Grand_Seiko_Vintage_5646-7040_Hammered_Case_On_wrist.jpg?v=1763132832\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0788\/8977\/9534\/files\/Grand_Seiko_5646-7040_Hammered_Case_Vintage_Macro_Dial.jpg?v=1763132832\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0788\/8977\/9534\/files\/Grand_Seiko_Vintage_5646-7040_Macro_Case.jpg?v=1763132832\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0788\/8977\/9534\/files\/Grand_Seiko_Vintage_5646-7040_Macro_GS.jpg?v=1763132832\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0788\/8977\/9534\/files\/Grand_Seiko_5646-7040_Hammered_Case_Vintage_Dial.jpg?v=1763132832\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0788\/8977\/9534\/files\/Grand_Seiko_5646-7040_Hammered_Case_Vintage_Medallion_Caseback.jpg?v=1763132832\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0788\/8977\/9534\/files\/Grand_Seiko_Vintage_5646-7040_Macro_Arabic_Markers.jpg?v=1763132832\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0788\/8977\/9534\/files\/Grand_Seiko_5646-7040_Hammered_Case_Vintage_Macro_Case.jpg?v=1763132832\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0788\/8977\/9534\/files\/Grand_Seiko_5646-7040_Hammered_Case_Vintage_Leather_Strap.jpg?v=1763132832\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0788\/8977\/9534\/files\/Grand_Seiko_5646-7040_Hammered_Case_Vintage_Buckle.jpg?v=1763132832\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0788\/8977\/9534\/files\/Grand_Seiko_5646-7040_Hammered_Case_Vintage_Left_Side.jpg?v=1763132832\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0788\/8977\/9534\/files\/Grand_Seiko_5646-7040_Hammered_Case_Vintage_Right_Side.jpg?v=1763132832\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0788\/8977\/9534\/files\/Grand_Seiko_5646-7040_Hammered_Case_Vintage_Crown.jpg?v=1763132832\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0788\/8977\/9534\/files\/Grand_Seiko_5646-7040_Hammered_Case_Vintage_Left_SideCase.jpg?v=1763132832\" alt=\"\"\u003e\u003c\/p\u003e","brand":"My Store","offers":[{"title":"Default Title","offer_id":41272175263808,"sku":null,"price":499.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0601\/6342\/4320\/files\/Grand_Seiko_5646-7040_Hammered_Case_Vintage_Watch.jpg?v=1781860800","url":"https:\/\/wearvico.com\/products\/grand-seiko-hammered-steel-5646-7040","provider":"wearvico","version":"1.0","type":"link"}