Silver-tone stainless steel case. Silver-tone stainless steel oyster bracelet with fold over clasp and safety release mechanism. Bi-directional rotating bezel, manual operation. Black dial displaying analog functions; features silver-tone hands, hour markers in indices, minute markers around the outer rim, and luminous coating for enhanced readability. Analog display includes hours, minutes, seconds and date window at 3 o'clock position via aperture. Powered by Rolex Calibre 3175 automatic movement with approximately 48-hour power reserve driven by a frequency of 28800 vph (4 Hz) containing 31 jewels. Sapphire crystal bezel provides scratch resistance. Screw down winding crown ensures water-resistance up to 100 meters / 330 feet, suitable for recreational swimming and diving activities under standard conditions. Solid case back included. Classic round shape with a diameter of approximately 40 mm.