Casio AQS800W Series | Analog Digital Watch | 100M WR | Solar Powered | 1/100 SEC Stop Watch | 6-Language Day of The Week Indicator | Countdown Timer | LED Light | Multi Alarm Black AQ-S810W-1AVDF

42MM MINERAL GLASS CASE | 33G | 100M WATER RESISTANT — With dimensions of 47.6 × 42 × 10.6mm and weighing just 33 grams, the AQ-S800W is lightweight and comfortable for all-day wear. Mineral glass protects the dial and the watch is water resistant to 10 ATM, suitable for swimming. A screw-back caseback and LED light with afterglow complete a well-built, practical package. 1/100-SECOND STOPWATCH | 5 ALARMS | 31-ZONE WORLD TIME — The 1/100-second stopwatch covers elapsed time, lap time, and split time up to 59'59.99". World time spans 48 cities, and 5 alarms make this a versatile timepiece for almost any sport outing. An hourly time signal and full auto-calendar with DST on/off round out a complete everyday feature set. DUAL COUNTDOWN TIMERS — BUILT FOR INTERVAL TRAINING — Two independent countdown timers can be used during interval training that alternates between two different paces, with a measuring unit of 1 second, an input range of 00'05" to 99'55" in 1-minute and 5-second increments, and repeats settable from 1 to 10. A feature rarely found at this price point — purpose-built for athletes and coaches. ANALOG-DIGITAL DUO DISPLAY WITH 6-LANGUAGE DAY INDICATOR — The sporty analog-digital combination display features a 6-language day of the week indicator supporting English, Portuguese, Spanish, French, German, and Italian — a practical multilingual feature for international travelers and global professionals. Analog hands show current time while the digital LCD displays date, day, and function data simultaneously. TOUGH SOLAR — CHARGED BY SUN & INDOOR LIGHT, NO BATTERY SWAPS — Casio's solar-recharging system converts even faint light from fluorescent lamps into ample energy to achieve stable operation of various high-load functions. A battery power indicator clearly shows the battery level, and a power saving mode prolongs battery life — storing up to 10 months of charge without further light exposure. Eco-friendly, low-maintenance, and always ready.