40mm stainless steel and 18kt yellow gold case Stainless steel and 18kt yellow gold Oyster bracelet Folding Oysterlock safety clasp with Rolex Glidelock extension system Blue Dial with applied gold luminous hour markers 18kt yellow gold unidirectional bezel with blue cerachrom insert Sapphire crystal with cyclops magnifier over the date 31 jewel automatic movement - cal. 3135 Reference #116613LB Serial # 01Sxxxxx - ca. 2013 Watch is pre-owned and has been polished and serviced