Model : 18k Rose Gold Plated Polished Stainless Steel Casework, Black Tachymeter, Grey Meteorite Design Dial, Black Subdials , Lumed steel Sticks Hour Index, on Dark Grey Leather strap with 18K Rose Gold Insignia Buckle Movement: Japanese OS 20 Working Chronograph Quartz Movement Functions: Hours, Minutes, Date ( Set via crown), Chronograph, 24 Hour Indicator at 3.00 Subdial Dimensions : Width 42.5mm x 14mmThk Material : 1 piece Forged Solid 316 Stainless Steel, Thick 18K Rose Gold Plating ...5 MilsBack : Solid case back with Insignia Crown : One-piece Screw down crown Crystal: Sapphire Crystal Water-resistant