10 Best Solar Atomic Watch of December 2025

• Multi-Band Atomic Timekeeping, Tough Solar Power (Approx. battery life: 9 months on full charge (without further exposure to light)
• Shock Resistant, 200M Water Resistant, Full Auto EL Backlight with Afterglow, World Time -31 times zones (48 cities + UTC)
• 1/100 second stopwatch -Measuring mode: Elapsed time, split time, 1st-2nd place times, Countdown Timer -Input range: 1 minute to 24 hours (1-minute increments and 1-hour increments)
• Accuracy: +/- 15 seconds per month (with no signal calibration)

Casio

• Solar-powered multifunction watch with full auto EL backlight, 4 daily alarms, and 41 world time zones
• Additional functions include 1/100 sec stopwatch
• countdown timer
• and 12/24 hr formats
• 46.4 mm resin case with mineral dial window
• Japanese quartz movement with digital display
• Resin band with buckle closure
• Water resistant to 200 m (660 ft): In general, suitable for professional marine activity and serious surface water sports, but not scuba diving

Casio

• Dual-display solar watch featuring world timer, LED light with after-glow, and five alarms
• 47-mm resin case with mineral dial window
• Japanese quartz movement with analog-digital display
• Resin band with buckle closure
• Water resistant to 100 m (330 ft): In general, suitable for swimming and snorkeling, but not scuba diving

Casio

• Shock-resistant watch featuring LED backlight with day, date, and time display
• Additional features include multi-band six atomic timekeeping, world time, daily alarm with snooze, 12 and 24-hour formats, and solar power battery
• 41 mm stainless steel case with mineral dial window.Size of case / total weight 53.2 x 50.0 x 17.7mm / 63g
• Accuracy: +/- 15 seconds per month

Casio

• Multi-Band Atomic Timekeeping, Tough Solar Power, Shock Resistant
• 200M Water Resistant, Full Auto EL Backlight with Afterglow, World Time
• 4 Daily alarms and 1 Snooze Alarm, Hourly time signal, 1/100 second stopwatch, Countdown Timer, Full auto-calendar, 12/24 hour formats, Button operation tone on/off
• Battery power indicator, Power saving function, Storage battery: Solar rechargeable battery, Approx. battery life: 9 months on full charge (without further exposure to light)

Casio

• Solar-powered sport watch featuring atomic time keeping, world time in 48 cities, and EL backlight
• Features 1/100-second stopwatch, daily alarm with snooze, 12- and 24-hour formats, tide/moon graph, 31 time zones, and day/date/month calendars
• 50 mm resin case with mineral dial window
• Japanese quartz movement with digital display
• Resin band with buckle closure
• Water resistant to 200 m (660 ft): In general, suitable for professional marine activity and serious surface water sports, but not scuba diving.

Casio

• Casual solar-powered watch with multiple functions including multi-band atomic timekeeping, shock resistance, EL backlight, world time (29 time zones, 48 cities), city code display, five daily alarms, 1/100-second stopwatch, countdown timer, full auto-calendar, battery indicator, and power-saving function
• Turn on or off the auto light function by holding down the light button and turn wrist at a 40 degree angle towards the user in a dark environment
• Approximate battery life: 10 months on full charge (without further exposure to light)
• Water resistant to 200 m (660 ft): In general, suitable for professional marine activity and serious surface water sports, but not scuba diving
• Auto light feature will not work if the battery level falls below Medium (marked as M on the face of the watch).

Casio

• Multi-Band Atomic Timekeeping (US, UK, Germany, Japan, China), Tough Solar Power, Shock Resistant, 200M Water Resistant
• Full Auto EL Backlight with Afterglow, World Time, 31 times zones (48 cities + UTC), city code display, daylight saving on/off, 4 Daily alarms and 1 Snooze Alarm, Hourly time signal
• 1/100 second stopwatch, Countdown Timer, Full auto-calendar (pre-programmed until the year 2099), 12/24 hour formats, Button operation tone on/off
• Storage battery: Solar rechargeable battery, Battery power indicator, Power saving function, Approx. battery life: 10 months on full charge (without further exposure to light)
• Module: 3195
• Accuracy at normal temperature: ±15 seconds a month

Casio

• Multi-Band Atomic Timekeeping , Tough Solar Power, Shock Resistant
• 200M Water Resistant, Full Auto EL Backlight with Afterglow, World Time, 4 Daily alarms and 1 Snooze Alarm, Hourly time signal
• 1/100 second stopwatch, Countdown Timer, Full auto-calendar, 12/24 hour formats, Button operation tone on/off
• Battery power indicator, Power saving function, Storage battery: Solar rechargeable battery, Approx. battery life: 9 months on full charge (without further exposure to light)

Casio

• 200M Water Resistance
• Chronograph Display
• Tough Solar Power
• Multi-Band 6 Atomic Timekeeping
• Duplex LC Display

Casio