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

100M WATER RESISTANCE, 5 ALARMS & AMBER LED LIGHT Built for active use, the watch provides 100-meter water resistance and includes 5 daily alarms, an hourly time signal, and an amber LED light for the LCD portion with selectable 1.5- or 3-second illumination and afterglow. Additional features include a full auto-calendar through 2099, 12/24-hour format, 6-language day-of-week display, button-tone on/off, and approximately ±30 seconds per month accuracy. TWO INTERVAL TIMERS & 1/100-SECOND STOPWATCH FOR TRAINING Two independent countdown timers can be used for interval training that alternates between two different paces. Each timer measures in 1-second increments, supports settings from 5 seconds to 99 minutes 55 seconds, and allows 1–10 repeat cycles. The 1/100-second stopwatch measures elapsed, lap, and split times up to 59 minutes, 59.99 seconds. WORLD TIME FOR 48 CITIES ACROSS 31 TIME ZONES Designed for travel and international use, World Time covers 31 time zones and 48 cities plus Coordinated Universal Time (UTC). Daylight saving time can be switched on or off, and the Home City and World Time City can be swapped for added convenience. SPORTY FOREST GREEN DESIGN WITH A LIGHTWEIGHT PROFILE Measuring 52.2 × 48.3 × 13.7 mm (L × W × H) and weighing just 40 grams, the watch features a resin case, resin bezel, resin glass, and resin band for a lightweight design suited to active everyday wear. The forest green colorway adds a distinctive outdoor-inspired look, while Neobrite on the hands helps improve visibility in low-light conditions. TOUGH SOLAR POWERED FOR LONG-LASTING PERFORMANCE The Casio AQ-S810W-3AV uses Tough Solar technology to convert light into power, eliminating the need for routine battery replacement. After a full charge, the rechargeable battery provides approximately 10 months of operation without further light exposure, or approximately 23 months when stored in darkness with Power Saving enabled. A battery power indicator and Power Saving function help manage energy.