Watch Specification Model: Shirryu/Thorm SHY028 Movement: Japan NH35 automatic movement Case material: 316L stainless steel Case back: 316L stainless steel Beze: Uni-Directional Rotating Bezel With Lume dots Watch mirror: Sapphire Crystal Glass,AR Coating Water resistance: 200 m / 20 ATM Luminous: C3 Green Light, Hands and Markers Crown: Screw-Down Case back: Screwback Case Watch Dimension Case diameter: 39mm(without crown) Case length: 46mm(lug to lug) Case thickness: 13mm Lug width: 20mm Our service Warranty: 3 years Returns policy: Please check the website“Return / Exchange / Warranty Policy” Style: automatic watch, dive watch, luxury watch Package: watch, box, warranty card, user manual Service: Support retail, wholesale. OEM/ODM. Please contact the seller if necessary.