Case / bezel material: Carbon / Resin? Resin Band Mineral Glass Neobrite Shock Resistant Carbon Core Guard structure 200-meter water resistance Double LED light: LED light for the face, LED backlight for the digital display World time: 31 time zones (48 cities + coordinated universal time), daylight saving on/off, Home city/World time city swapping 1/100-second stopwatch Countdown timer: Measuring unit: 1 second 5 daily alarms Hourly time signal Hand shift feature (Hands move out of the way to provide an unobstructed view of digital display contents.) Full auto-calendar (to year 2099) 12/24-hour format Button operation tone on/off Regular timekeeping Analog: 2 hands (hour, minute (hand moves every 20 seconds)), 1 dial (mode) Digital: Hour, minute, second, pm, month, date, day Accuracy: ±15 seconds per month Battery: SR726W × 2 Size of case : 51.2×48.7×14.1mm Total weight : 64g