Casio Timeless AQ-S820W-3BVEF

Casio AQ-S820W-3BVEF - An aeronautical solar-powered watch for active everyday life

Casio AQ-S820W-3BVEF combines practical functionality, modern design and solar-power. With a dial inspired by aviation instruments, white hands and a clear LCD display, it's easy to read the time – whether you're working, exercising or travelling.

Lightweight and durable design

The watch has a round and flat bezel that accentuates its sporty and technical appearance. The LCD display at 6 o'clock shows the date, day of the week and world time features at a glance.

• Case size: 52.5 × 50.1 × 12.7 mm
• Weight: 46 g
• Material: Durable resin case and strap
• Glass: Resin glass
• Bracelet fit: 145-215 mm
• Water resistance: 100 metres – suitable for swimming and sports

Solar-power and smart functions

• Solar-powered (Tough Solar) – no more battery changes
• Long battery life: up to 10 months in normal use, 23 months in power saving mode
• World time: 31 time zones, 48 cities + UTC, daylight saving on/off
• 1/100th of a second stopwatch: total time, lap time and split time
• Two timers: designed for interval training (cycles 1-10 times)
• 5 daily alarms + hourly alarm
• LED backlight, duration of illumination selectable (1.5 s or 3 s)
• Automatic calendar until 2099
• Screen mute function and power saving mode
• Battery level display and 12/24 h display format
• Accuracy: ±30 seconds per month

Two-display chronograph

The watch combines analogue and digital display:

• Analog: hour and minute hand (movement every 20 seconds)
• Digital: hours, minutes, seconds, month, day and day of week
• Language of the weekday: selectable in six languages (EN, PT, ES, FR, DE, IT)