Automatic chronometer movement, Swiss Made. Black dial with rose gold-tone hour markers and hands. Analog dial type featuring minute markers around the outer rim, luminescent coating on hands and markers for enhanced night-time legibility. Includes date subdials visible through apertures at 3 o'clock. Silver-tone stainless steel case equipped with a screw-down rotating bezel crafted from two-tone (silver-tone and rose gold-tone) 18kt rose gold material. Accompanied by solid link oyster bracelet made of two-tone (silver-tone and rose gold-tone) stainless steel and 18kt rose gold, size adjusts for wrist comfort. Round case shape with dimensions: 40 mm diameter, approximately 12 mm thickness. Two-piece design available upon request. Rose gold-tone bezel is bidirectional rotatable. Band width measures 15.5 mm, length accommodates up to 7.5 inches (standard strap). Secured by a fold over clasp closure system. Water resistant capability reaches depths of approximately 100 meters or 330 feet. Functions performed: display for hours, minutes, seconds and date, certified chronometer performance with bitting at 28800 vph (5 Hz frequency), powered by the Rolex Calibre 3235 movement containing 31 jewels.