Dimensions (L × W × H). More information about Dimensions (L × W × H). 48.9 × 42.8 × 13.5 mm. Weight. More information about Weight. 74 g. Case and bezel material. Stainless steel/Bio-based resin. Band. Bio-based resin band. Structure. Shock Resistant. Water resistance. Water resistance up to a depth of 20 bar. Time calibration. Radio-controlled watch, Multi Band 6 technology. Power supply and battery life. Tough Solar (solar powered). Exterior. Glass. Mineral Glass. Case back. Screw back. Surface treatment. Diamond ion-plated. Compatible band size. 145 to 205 mm. Watch Features. World time. 5 world times. 31 time zones (48 cities + coordinated universal time), daylight saving on/off and home city/world time city swapping. Stopwatch. 1/100-second stopwatch. Measuring capacity: 00´00´´00~59´59´´99 (for the first 60 minutes). 1:00´00~23:59´59 (after 60 minutes). Measuring unit: 1/100 second (for the first 60 minutes). 1 second (after 60 minutes). Measuring modes: Elapsed time, split time, 1st-2nd place times. Timer. Countdown timer. Measuring unit: 1 second. Countdown range: 24 hours. Countdown start time setting range: 1 second to 24 hours (1-second, 1-minute and 1-hour increments). Alarm/hourly time signal. 5 daily alarms (with one snooze alarm). Hourly time signal. Illumination. LED backlight (Super Illuminator). Full auto LED light, selectable illumination duration (1.5 or 3 seconds), and afterglow. Light color. LED: White. Calendar. Full auto-calendar (up to year 2099). Mute function. Button operation tone on/off. Power saving function. Power saving (display goes blank to save power when the watch is left in the dark). Battery display/alert. Battery level indicator. Run time. Approximate battery operating time: 10 months on rechargeable battery (period of operation with normal use without exposure to light after full charge). 22 months on rechargeable battery (period of operation when stored in total darkness with the power saving function switched on after full charge). Accuracy. Accuracy: ±15 seconds per month. Other options. 12/24-hour format swapping. Day of the week display (days of the week selectable in six languages). Regular timekeeping: Hour, minutes, seconds, p.m., month, date, day. Time calibration details. Time signal reception. Auto receive up to six times a day (remaining auto receive canceled when any of the auto receive is successful). Five times a day for the Chinese calibration signal. Manual receive. Latest signal reception results. Time calibration signals.