Cartier Calibre 430 MC Hand Wind movement, fixed stainless steel bezel with silver-tone ceramic insert, square case measuring 46.6 mm x 33.9 mm and 7.5 mm thick made from silver-tone stainless steel, black leather strap with deployment clasp, scratch resistant sapphire crystal glass, solid case back, power reserve of approximately 40 hours at a bith of 21600 vph (based on Piaget 430P), blue hour and minute hands against a silver dial marked with Roman numeral hour markers, dial type designated 430 mc, water resistant to 30 meters / 100 feet