Construction: Shock Resistant with a Carbon Core Guard structure for maximum durability in a slim profile. ​Water Resistance: 200-meter (20 bar) water resistance, suitable for professional marine activity and serious surface water sports. ​Movement: Analog-Digital Quartz with an accuracy of ±15 seconds per month. ​Features: World time (31 zones), 5 daily alarms, 1/100-second stopwatch, countdown timer, and a double LED light for visibility in the dark. ​Battery Life: Approximately 3 years on two SR726W batteries. ​Dimensions: 48.5 × 45.4 × 11.8 mm; weight is a lightweight 51g.