Dimensions (L × W × H). More information about Dimensions (L × W × H). 49.3 × 44.4 × 11.9 mm. Weight. More information about Weight. 72 g. Case and bezel material. Bio-based resin/Stainless steel. Band. Bio-based resin band. Structure. Shock Resistant. Water resistance. Water resistance up to 20 bar. Time adjustment. Bluetooth: Connects to a smartphone and automatically adjusts the time. Power supply and battery life. Tough Solar (solar powered). Smartphone Link Features / App Connectivity. Smartphone Link Feature. Mobile Link (wireless linking with Bluetooth®). Apps. CASIO WATCHES. App connectivity feature. Auto time adjustment. Easy watch setting. World time of approximately 300 cities. Time and place. Reminder. Phone finder. Exterior. Glass. Mineral glass. Compatible band size. 145 to 215 mm. Other. Neobrite. Watch Features. World time. World time. 38 time zones (38 cities + coordinated universal time), DST automatic switching and local city/world time city switching. 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). Measurement modes:Elapsed time and lap/split time. Timer. Countdown timer. Measuring unit:1 second. Countdown interval:60 minutes. Countdown start time setting range:1 second to 60 minutes (1-second and 1-minute increments). Alarm/hourly time signal. 5 daily alarms. Hourly time signal. Illumination. Double LED light. LED light for the face (Super illuminator, selectable illumination duration (1.5 or 3 seconds) and luminous intensity). LED light for the digital display (Super illuminator, selectable illumination duration (1.5 or 3 seconds) and luminous intensity). 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:7 months with rechargeable battery (operating period with normal use without exposure to light after charging). 18 months with rechargeable battery (operating period when stored in total darkness with the power saving function turned on after full charge). Accuracy. Accuracy:±15 seconds per month (without Mobile Link function). Other options. Hand shift feature (hands move to provide an unobstructed view of digital display contents). 12/24-hour format. Date/month display switching. Day display (days of the week selectable in six languages). Regular timekeeping:Analog:2 hands (hour and minute ), 1 dial (battery level and mode). Digital: Hour, minutes, seconds, p.m., month, date, day