Introducing the Casio Tough Solar AQS810W-1A3 Watch, featuring a robust 52.2 × 48.3 × 13.7mm case size and a lightweight design of just 40g. Constructed with resilient resin for the band, bezel, and case, it ensures durability. With water resistance up to 100 meters, it's suitable for various activities. Powered by solar energy, it eliminates the need for frequent battery replacements. Equipped with resin glass and an LED light for clear visibility. Features include world time functionality covering 31 time zones, a stopwatch, timer, and alarm with hourly time signal. Additionally, it boasts a full auto-calendar up to the year 2099, a mute feature, and power-saving functionality. Battery operating time varies from 10 months on rechargeable battery under normal use to 23 months when stored in total darkness with the power save function on. It maintains an accuracy of ±30 seconds per month and supports both 12/24-hour formats. Regular timekeeping includes analogue hands for hours and minutes (moving every 20 seconds) and digital displays for hour, minute, second, PM, month, day, and a 6-language day of the week indicator. - 52.2 × 48.3 × 13.7mm Case Size - 40g Weight - Resin Band, Bezel and Case - 100 Meters Water Resistant - Solar powered - Resin Glass - World time: 31 time zones (48 cities coordinated universal time), daylight saving on/off, Home city/World time city swapping - Stopwatch - Timer - Alarm/hourly time signal - LED light (LCD part only) - Calendar: Full auto-calendar (to year 2099) - Mute feature: Button operation tone on/off - Power Saving (display goes blank to save power when the watch is left in the dark) - Approx. battery operating time: *10 months on rechargeable battery (operation period with normal use without exposure to light after charge) *23 months on rechargeable battery (operation period when stored in total darkness with the power save function on after full charge) - Accuracy: ±30 seconds per month - 12/24-hour format