Rolex White Dial, Polished Oystersteel Bracelet Chronometer Movement Wristwatch. Automatic mechanical self-winding movement with Perpetual rotor. Silver-tone dial featuring applied hour markers and Chromalight luminous hands for enhanced readability in the dark. Sapphire crystal bezel and case back offering scratch resistance and transparency. Includes date display at 3 o'clock position. Calibre 40 chronograph movement ensuring precise timekeeping. Water resistant up to 100 meters (approx. 330 feet), suitable for swimming but not diving. Folding clasp closure with Easylink extension feature allowing adjustment without tools.