{"product_id":"anniversary-gift-hell-automatic-custom-timepiece","title":"Daykeeper – Best Friend Edition","description":"\u003cp\u003eThis mechanical custom timepiece utilizes a self-winding internal mainspring, providing continuous kinetic operation without external battery power. The 40mm case diameter fits securely under standard long-sleeve cuffs, preventing fabric snagging during wrist rotation. Constructed from solid 316 stainless steel, the chassis and fluted bezel resist structural deformation and daily oxidation. The sapphire crystal incorporates an anti-reflective coating, which diffuses overhead light to maintain dial legibility in direct sunlight.\u003c\/p\u003e\n\u003cp data-path-to-node=\"8\"\u003eShoppers utilizing a silver 40mm sapphire mechanical watch for a \u003ca class=\"ng-star-inserted\" href=\"https:\/\/www.yatsso.com\/collections\/pet\" target=\"_blank\" rel=\"noopener\" data-hveid=\"0\" data-ved=\"0CAAQ_4QMahgKEwjHs-uM65-UAxUAAAAAHQAAAAAQ0gQ\"\u003ePet Memory Watch\u003c\/a\u003e apply the included free engraving service to the steel caseback to document specific dates or text. The 16mm-20mm width bracelet features adjustable steel links, securing the 135g case weight evenly on wrist circumferences measuring 6.30 to 7.09 inches. The folding clasp mechanisms lock the hardware during active arm movement.\u003c\/p\u003e\n\u003cp data-path-to-node=\"9\"\u003eWhat mechanical watch features anti-reflective sapphire crystal alongside free customization? This unit answers that query by combining glare-reduction glass with dedicated engraving space. The 11.5mm case thickness centers the mass against the ulna bone to reduce daily fatigue. Factory pressure testing confirms the 3ATM rating, certifying water resistance up to 30 meters against rain and handwashing exposure.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCase Diameter:\u003c\/strong\u003e 40mm\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCase Thickness:\u003c\/strong\u003e 11.5mm\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCase Material:\u003c\/strong\u003e 316 Stainless Steel\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBezel:\u003c\/strong\u003e Fluted Bezel\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCrystal:\u003c\/strong\u003e Sapphire Crystal, Anti-reflective Coating\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBracelet Material:\u003c\/strong\u003e 316 Stainless Steel\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBracelet Clasp:\u003c\/strong\u003e Folding Clasp\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBracelet Width:\u003c\/strong\u003e 16mm-20mm\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBracelet Length: \u003c\/strong\u003eAdjustable for Wrists 6.30\"-7.09\"\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWater Resistance:\u003c\/strong\u003e 3ATM (30 meters)*\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWeight:\u003c\/strong\u003e 135g\u003c\/p\u003e","brand":"YATSSO CUSTOM WATCHES","offers":[{"title":"Silver Scale","offer_id":45529065783350,"sku":null,"price":319.0,"currency_code":"USD","in_stock":true},{"title":"Silver Diamond（+＄50.00）","offer_id":45529065816118,"sku":null,"price":319.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0743\/1303\/9926\/files\/daykeeper-best-friend-edition-8786953.webp?v=1779440827","url":"https:\/\/www.yatsso.com\/products\/anniversary-gift-hell-automatic-custom-timepiece","provider":"YATSSO CUSTOM WATCHES","version":"1.0","type":"link"}