Analog chronometer, automatic movement Cal. 3861 (derived from Lemania 1873), silver-tone stainless steel case with brown alligator leather strap, fixed tachymeter bezel, gold-tone hands and hour markers on a black dial, three sub-dials for measuring elapsed time - 60 seconds, 30 minutes, and 12 hours, luminous coating visible through sapphire crystal. Features: chronograph function with central start/stop button, fold-over clasp with safety lock mechanism, scratch-resistant sapphire crystal lens, approximately 50-hour power reserve (based on 21600 vph), water resistance to 50 meters.