Band: Solid stainless steel band Length: 150–205 mm / 25.0 mm Case size: 51.1 × 44.6 × 8.9 mm Weight: 133 g Tough Solar (solar charging system) Water-resistant to 10 bar Mobile Link function (synchronization with compatible mobile phones via Bluetooth) Dual Time Stopwatch (1-second, 24-hour, flyback, one-push start from time mode) Alarm Power Saving function (stops the hands after a certain period in dark environments to conserve power) Date and Day Display Full Auto Calendar Operating time from a full charge without solar power generation ・When functions are in use: Approx. 5 months ・In power-saving mode: Approx. 19 months *When not linked to a smartphone, the watch operates with standard quartz accuracy (average monthly deviation of ±15 seconds). Accurate Time System*: Automatically syncs with your smartphone via Bluetooth four times a day to ensure accurate time. World Time: Displays world time on the sub-dial at the 9 o’clock position. Allows you to check the time in two cities at a glance, making it very convenient for overseas travel, business trips, and communication with people abroad. You can easily select world time cities via the smartphone app. Stopwatch: Lap times measured by the watch are stored in memory for up to 200 laps, and measurement records can be transferred to a smartphone in 1/1000-second increments. Last Lap Indicator: When measuring lap times with the stopwatch, the time difference from the previous lap is displayed on the sub-dial at the 6 o'clock position. Tough Solar: A solar charging system that charges even with minimal light. A full charge stores enough energy to power the watch for approximately 5 months under normal use. Phone Finder: Press and hold the watch button to make your smartphone ring within Bluetooth range, which is useful when you can’t find your phone. Sapphire crystal with anti-reflective coating on the inner surface Water-resistant to 10 bar *Accurate Time System is a time correction system that retrieves the time from time servers around the world and combines it with Casio’s proprietary database to generate the local time.