Model : Polished 316F Stainless Steel Casework, White Dial, White Subdial, Leather Strap with with Insignia BuckleMovement: Nickle Plated Japanese Miyota 82S7 Automatic Movement,21J, Insignia Rotor,Functions: Hours, Minutes, Seconds at 5.00 Subdial, 24 Hours Indicator at 9.00 Subdial , Expose Balance wheel as Faux Tourbillon Blue Dimensions : Dia 40mm x 11.5mmMaterial : 1 piece 316F Forge Stainless Steel Casework Back : Display Caseback with Serial Engraving on Case rims... Crown : One-piece Screw down crown with o ring Crystal:Sapphire Crystal Water-Proof to 30m at Factory