{"product_id":"grand-seiko-40mm-heritage-collection-automatic-steel-mens-watch-40mm-aa64970-157899228-p","title":"Grand Seiko 40mm Heritage Collection Automatic Steel Men's Watch 40MM aa64970 157899228 [P]","description":"- Accessories: Warranty card, warranty certificate, booklet, extra links, pouch, lint cloth\u003cbr\u003e- Exterior: Stainless steel\u003cbr\u003e- Glass: Sapphire\u003cbr\u003e- Specifications: See-through screw back\u003cbr\u003e- Glass material: Dual curve sapphire\u003cbr\u003e- Coating: Anti-reflective coating on the inside\u003cbr\u003e- Case size: Width 40.0mm, Length 46.6mm, Thickness 13.0mm\u003cbr\u003e- Band width: 20mm\u003cbr\u003e- Type: One push three-fold\u003cbr\u003e- Wrist circumference (maximum): 195mm\u003cbr\u003e- Movement: Caliber No.: 9S65\u003cbr\u003e- Drive type: Mechanical automatic (manual winding included)\u003cbr\u003e- Driving duration: Approximately 72 hours (about 3 days) when fully wound\u003cbr\u003e- Static precision: Daily average deviation: +5 seconds to -3 seconds\u003cbr\u003e- Measurement conditions based on Grand Seiko's unique standards, measured in movement group conditions at factory shipping, under 6 position and 3 temperature variations.\u003cbr\u003e- Actual use precision (portable precision) may vary\u003cbr\u003e- Portable accuracy: Daily deviation +10 seconds to -1 second\u003cbr\u003e- Waterproof: Daily life reinforced waterproof (10 ATM)\u003cbr\u003e- Weight: 156g\u003cbr\u003e- Other: Screw-down crown\u003cbr\u003e- Grand Seiko SBGR317 Heritage Collection 40MM Automatic Steel Men's Watch in clean condition after cleaning and polishing, purchased in July 2025.\u003cdiv style=\"margin-top:30px;\"\u003e\n\u003cb\u003eGender\u003c\/b\u003e: Men\u003cbr\u003e\u003cb\u003eBrand\u003c\/b\u003e: GRAND SEIKO\u003cbr\u003e\u003cb\u003eProduct Name\u003c\/b\u003e: Grand Seiko 40mm Heritage Collection Automatic Steel Men's Watch 40MM aa64970 157899228 [P]\u003cbr\u003e\u003cb\u003eCondition\u003c\/b\u003e: S\u003cbr\u003e\u003cb\u003etrenbe Code\u003c\/b\u003e: 157899228\u003c\/div\u003e","brand":"GRAND SEIKO","offers":[{"title":"Width 4CM \/ Length 46.6CM \/ Suitable for wrist circumference under 19CM \/ NONE","offer_id":48989047292118,"sku":null,"price":3623.0,"currency_code":"USD","in_stock":true},{"title":"Width 4CM \/ Length 46.6CM \/ Suitable for wrist circumference under 19CM \/ UV\u0026Ozone Sterilization Care $20","offer_id":48989047324886,"sku":null,"price":3643.0,"currency_code":"USD","in_stock":true},{"title":"Width 4CM \/ Length 46.6CM \/ Suitable for wrist circumference under 19CM \/ Authenticity Certificate $20","offer_id":48989047357654,"sku":null,"price":3643.0,"currency_code":"USD","in_stock":true},{"title":"Width 4CM \/ Length 46.6CM \/ Suitable for wrist circumference under 19CM \/ Complete Care Bundle (UV + Certificate) $30","offer_id":48989047390422,"sku":null,"price":3653.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0711\/8110\/7414\/files\/639191953695648164_31212628_0.jpg?v=1783595257","url":"https:\/\/global.trenbe.com\/products\/grand-seiko-40mm-heritage-collection-automatic-steel-mens-watch-40mm-aa64970-157899228-p","provider":"trenbe","version":"1.0","type":"link"}