Automatic mechanical chronograph movement, Calibre 4131. 72-hour power reserve. Analog display with sub-dials for 60 seconds, 30 minutes and 12 hours elapsed time measurement functions. Black dial with diamond hour markers and luminous hands/minute markers. White gold case measuring 40mm in diameter. Fixed black tachymeter bezel (cerachrom). Scratch-resistant sapphire crystal. Black rubber strap fitted to a screw-down white gold folding clasp with safety release mechanism. Solid case back. Water resistant up to 100 meters / 330 feet depth.
