Watch Specification Model:SD1989 Movement: Japan NH35 automatic, 41 hours of energy storage. Case material:316L stainless steel Case back: 316L stainless steel caseback. Bezel: 120 clicks unidirect rotationalceramic bezel Watch mirror: sapphire crystalwith AR coating. Water resistance: 1000m / 100 ATM Luminous: Swiss BGW9 blue super luminous. Crown: Screwdown Crown Case back: Monoblock Case Watch Dimension Case diameter: 45mm(withoutcrown) Case length: 54.5mm(lug to lug) Case thickness: 15mm Lug width: 22mm Dial size: 31.5mm Weight: about 220g including mesh band Our service Warranty:2 years Returns policy:30-day return and refund. Style: automatic watch, dive watch, luxury watch Package: watch, box,warranty card, user manual