Dimensions (L × W × H). More information about Dimensions (L × W × H). 51 × 48.5 × 12.5 mm. Weight. More information about Weight. 167 g. Case and bezel material. Stainless steel. Band. Stainless steel band. Triple-fold Clasp with One-touch Release. Water resistance. Water resistance up to a depth of 10 bar. Time adjustment. Bluetooth: Connects to a smartphone and automatically adjusts the time. Power source and battery life. Approximate battery life: 2 years on CR2016. Smartphone Link Features / App Connectivity. Smartphone Link Feature. Mobile Link (wireless linking with Bluetooth®). Apps. CASIO WATCHES. App connectivity function. Automatic time adjustment. Easy clock setting. World time of approximately 300 cities. Stopwatch data transfer. Programmable timer. Phone finder. Exterior. Glass. Mineral Glass. Surface treatment. Black ion plated bezel. Compatible band size. 150 to 205 mm. Watch functions. World time. World time. 38 time zones (38 cities + UTC), daylight saving on/off, DST auto switching, home city/world time city swapping. Stopwatch. 1/1000-second stopwatch. Measuring capacity:00´00´´000~59´59´´999 (for the first 60 minutes). 1:00´00´´0~23:59´59´´9 (after 60 minutes). Measuring unit:1/1000 second (for the first 60 minutes). 1/10 second (after 60 minutes). Measuring modes:Elapsed time and lap time. 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. Hourly time signal. Illumination. Double LED light. LED light for the face (Auto LED light, Super illuminator, selectable illumination duration (1.5 or 3 seconds), and afterglow). LED backlight for the digital display (Auto LED light, Super illuminator, selectable illumination duration (1.5 or 3 seconds), and afterglow). Light color. LED: white. Calendar. Full auto-calendar (up to the year 2099). Mute function. Button operation tone on or off. Accuracy. Accuracy: ±15 seconds per month (without Mobile Link function). Other options. 12/24-hour format. Date/month display swapping. Day display (days of the week selectable in six languages). Hand shift function (Hands move to provide an unobstructed view of digital display contents). Airplane mode. Scheduled on/off of beep. Regular timekeeping:Analog: 2 hands (Hour and minute (hand moves every 20 seconds)), 1 dial . Digital: Hour, minute, second, pm, month, date, and day