Brand new, Swiss Made, Optima Oakland Automatic watch. 1923, the birth of a Legend, where the beauty of the watch watches lies in their detail. From metals and mother-of-pearl through to precious stones, Optima combine different materials in layers to create an understated relief effect on the watch dial. Model: OSA483-BX-9A Dial: Black. Light Blue lume hands and indexes. Round dial. Case size: 43.35mm, thickness 11mm Case material: black colored stainless steel Water Resistance : 10 atm Sapphire Glass Movement: Swiss-made automatic RW24 28,800 bph, 42-hour power reserve Bracelet: Grey rubber band with simple buckle, 22 mm wide. WR: 100 m (10 ATM / 330 feet) Functions: Center hours, minutes, and seconds.