The Casio Men's Solar Moon and Tide Data Watch W-S210HD-1AVCF is powered by the Casio's unique Tough Solar system, which transforms a small amount of light into power.

This self-sufficient system, which changes abundantly available light into power, eliminates the need to replace batteries and operates completely automatically. Human beings depend on tools, so we need this kind of clean system to bring us closer to living in harmony with our planet's environment.

The Casio Men's Solar Moon and Tide Data Watch also boasts a moon age display, which displays the moon age and phase based on your current latitude and longitude. A tide graph is also featured in the watch, which will graphically display tidal movements based on your current latitude, longitude and the lunitidal interval.

The watch also includes world time display, showing the current time in major cities and specific areas around the world.

Functions

• Stainless Steel Bracelet
• Resin Case
• Quartz Digital Movement
• Solar Powered
• Tide/ Moon Graphs
• Stop Watch: 24 Hour Max and Splits for 1/100 Seconds
• Countdown Timers: 1 Min to 24 Hours
• World Time
• Alarm
• 12/24-Hour Timekeeping
• Light
• Battery Level Indicator
• Water Resistant To 100 Metres