Features: Dual movements: time is show on digital and analog way. Multi-functions: backlight, chronograph, Spl, alarm, hourly chime, date/week/H/M/S display, 12/24H exchange, countdown. Easy to adjust the mentioned functions with 4 buttons. With luminous analog to see time clearly at night or dark place. Don't have to worry about water, it's 30M water-proof.