Case / bezel material: Resin Resin Band Mineral Glass Magnetic Resistant Shock Resistant 200-meter water resistance Size of case : 55 × 51.2 × 16.9 mm. Case / bezel material: Resin. Auto light switch, selectable illumination duration (1.5 seconds or 3 seconds), afterglow. 29 time zones (48 cities + coordinated universal time), daylight saving on/off, home city/world time city swapping. Measuring capacity: 99:59’59.999′. Measuring modes: Elapsed time, lap time, split time. Others: Speed (0 to 1998 units/hour), Distance input (0.0 to 99.9). Mach indicator (speed exceeding 1225 units/hour). Measuring unit: 1 second. Countdown range: 24 hours. Countdown start time setting range: 1 minute to 24 hours (1-minute increments and 1-hour increments). 5 daily alarms (with 1 snooze alarm). Full auto-calendar (to year 2099). Analog: 2 hands hour, minute (hand moves every 20 seconds), 1 dial (speed). Accuracy: ±15 seconds per month. Battery life: 2 years on CR1220. Size of case : 55 × 51.2 × 16.9 mm. Total weight : 72 g.