A Self Charging Solar Power system drives the new Casio W-S210 Series; a new eco-friendly timepiece that graphs Tidal movements & Moon Phases and is 100M Water Resistant. The unique power system eliminates the need for battery changes and is strong enough to power a multitude of additional functions such as 48-city World Time 1/100th Second Chronograph 5 Daily Alarms and more

• Black Resin Band
• Tough Solar Power
• 100M Water Resistant
• LED Light with Afterglow
• Moon Data
• Tide Graph
• 4 Daily alarms and 1 Snooze Alarm
• Hourly time signal
• World Time
• 1/100 second stopwatch
• Countdown timer
• Full auto-calendar
• 12/24 hour formats