Manmade and Natural materials
Made in the USA
Shock resistant, mineral glass, 200-meter water resistance, el backlight, flash alert, 1/100-second stopwatch, countdown timer
Multi-function alarm, hourly time signal, full auto-calendar (to year 2039), 12/24-hour format, approx. Battery life: 2 years on cr2016
Quartz Movement
Case Diameter: 43.77mm
Water resistant 200m (660ft): in general, suitable for professional marine activity and serious surface water sports, but not diving