This Casio G-Shock AQ-S820W-3BV is a solar-powered watch with 100-meter water resistance, featuring a design inspired by aircraft instrument panels. It has a round, flat bezel with white indexes and hands for enhanced readability, and a digital display at the 6 o'clock position showing the date, day, and world time.
- Case size: 52.5 × 50.1 × 12.7 mm
- Weight: 46 g
- Case and bezel material: Resin
- Band material: Resin
- Water resistance: 100-meter (10 ATM)
- Power system: Tough Solar (solar charging system)
- Glass: Resin glass
- Band fits: 145–215 mm
- World time: Displays time for 48 cities (31 time zones, daylight saving settings) + UTC, with home city swapping
- Stopwatch: 1/100 second, 60-minute capacity, split time function
- Timer: Interval timer with up to 2 preset times (set in 5-second increments, max 99 minutes 55 seconds), with repeat function (1-10 times)
- Alarms: 5 daily alarms, hourly time signal
- Backlight: Amber LED with afterglow and selectable duration (1.5 or 3 seconds)
- Calendar: Full auto-calendar
- Other features: Button operation tone ON/OFF, power saving function