Specifications Case Diameter: ................................... 40 mm. Case Thickness: .................................. 7 mm. Case Material: ...................316L Stainless Steel Finishing: ......... Brushed PVD IP Gun Finish Lens: .......Sapphire Coated K1 Crystal, AR Coating Movement: .......... Swiss Ronda Movement Strap: ........... Premium Genuine Italian Leather Water Resistant: ..................................... 5ATM Wrist Fitting: ................ Aprx. 160mm - 205mm Warranty: ............................................... 1 year