Rolex Calibre 3135 automatic chronometer movement, scratch resistant sapphire crystal. Silver-tone stainless steel round case size 40 mm thickness 12 mm with uni-directional rotating black bezel and screw down crown; solid case back. Analog functions: hour, minute, second, date. Black dial features silver-tone hands, index hour markers, minute markers around outer rim, luminescent for night readability including at the 3 o'clock date aperture. Oyster bracelet in silver-tone stainless steel band width 15.5 mm length approx 7.75 inches with fold over clasp. Water resistant to 300 meters / 1000 feet (approx). Swiss Made luxury watch.