10-YEAR BATTERY LIFE • World map for World Time • 1/100-second stopwatch • LC Analog display (Home city time) • 100-meter water resistance Resin Glass / Spherical Glass 100-meter water resistance Case / bezel material: Resin Stainless Steel Band One-touch 3-fold Buckle LED backlight Selectable illumination duration, afterglow Multi Time (4 different cities) World time 31 time zones (48 cities + coordinated universal time).