Polished stainless steel. 40 mm diameter. See-through case-back. Convex sapphire crystal. Water-resistant up to 5 meters, FC-310 caliber, Automatic movement. 38-hours power reserve, 26 jewels, 28'800 alt/h, Silver color dial, Guilloch? decoration and pearl black applied roman numeral indexes. Hand polished pearl black hands. Heart beat opening at 12 o?clock, Black leather croco calf leather strap.