Hamilton Khaki Navy GMT Auto - Men's Black Watch - H77615333 - Brushed Steel Case - Black Rubber Strap - Scratch Resistant Sapphire Crystal - Automatic movement - 200 Meters / 660 Feet Water-Resistant - Case diameter - 42 mm - Thickness - 12.7 mm - Lug width - 21mm - Power reserve - 50 hours watch only listing.