Features: case/bezel material stainless steel stainless steel band solar powered partial ion plated mineral glass tough solar  lap 10 world time (29 time zones) 1/20-second stopwatch countdown timer tachymeter daily alarm battery level indicator power saving full auto-calendar (to year 2099) date display day of the week indicator regular timekeeping accuracy ±15 seconds per month double-lock, 1-press, 3-fold clasp screw lock crown screw lock back 100m water resistance size of case 48 × 44.8 × 11.5 mm