Assorted Models of the Tonda SeriesModel : 18K Champagne Gold Plated Polished 316F Stainless Steel, Smooth Bezel, Assorted Dials Shown, Leather Strap with with Insignia BuckleMovement: Asian Clone 2824 Automatic Movement,25J, 28800bph, Insignia Rotor,Functions: Hours, Minutes, Seconds (6.00 Subdial) Blue Dimensions : Dia 39mm x 10mmMaterial : 1 piece 316F Forge Stainless Steel Casework, Thick 18K Champagne Gold Plating .. 5 Mils Back : Display Caseback with Serial Engraving on Case rims... Crown : One-piece Screw down crown with o ring Crystal:Sapphire CrystalWater-Proof to 30m at Factory