Watch Specification Brand: WatchdivesModel: WD1680VMovement: Japan NH35 automatic, 41 hours of energy storage. Case material: 316L stainless steelCase back: 316L stainless steelBezel: 120 Click unidirect rotational ceramic bezel with lume dot at 12HWatch mirror: sapphire crystal with AR coating.Water resistance: 300 m / 30 ATMLuminous: Swiss C3 green super luminous.Crown: Screw-DownCase back: Screwback CaseHands craft: Polished brushing hands, Luminous CoatingClasp: Folding Clasp With Safety. 6 micro adjustment milled clasp.Watch DimensionCase diameter: 41mm(without crown)Case length: 48mm(lug to lug)Case thickness: 13.5mm Lug width: 20mm Our serviceWarranty: 3 years Returns policy: Please check the website“Return / Exchange / Warranty Policy” Style: automatic watch, dive watch, luxury watch Package: watch, box, warranty card,Service: Support retail, wholesale. OEM/ODM. Please contact the seller if necessary.