Caliber : H-10 Collection : Khaki Aviation Movement : Automatic Case size : 38mm Thickness (mm) : 10.8 Dial color : Black Case material : Stainless steel Crystal : Sapphire Lug width : 19mm Power reserve : 80 hour Water Resistance : 5 bar (50m)/73 psi (164ft) Anti Reflection : Yes Open Case Back : Yes Strap type : Calf leather Buckle type : Pin buckle Buckle width : 18mm A three-hand movement with or without a date function and boasting a superior power reserve of 80 hours, the H-10 appears with intricate contrasting snail and pearled patterns for the American Classic models it drives and streamlined surfaces for the pilots’ watches. If you have any questions, please contact me.