Assorted Models of the Star Automatic SeriesModel : 18k Rose Gold Plated Polished 316F Stainless Steel, Assorted Dials Shown, Leather Strap with with Insignia BuckleMovement: Nickle Plated Asian Clone 2824 Automatic Movement,25J, 28800bph, Gold Insignia Rotor,Functions: Hours, Minutes, Seconds, Date at 6.00 Blue Dimensions : Dia 39 mm x 11mmMaterial : 1 piece 316F Forge Stainless Steel Casework, Thick 18k Rose 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