Features:

• Shock Resistant
• G9100 51.0 x 46.0 x 16.4mm / 53g Size of case / total weight
• 200M Water Resistant
• 12/24 Hour Formats

Editor Reviews:

Product Description:
The CASIO GULFMAN series features: Shock Resistant, Rust Resistant, 200M Water Resistant, Auto Dual EL Backlights with Afterglow, Moon Data (moon age of the input data, moon graph),Tide Graph, World Time, 29 times zones (48 cities), city code display, daylight saving on/off, 3 Multi-function Alarms (1 with snooze),Countdown Timer, Measuring unit: 1/10 second Countdown range: 1 minute to 24 hours, Auto Repeat, 1/100 second stopwatch, Measuring capacity: 24:59'59.99", Measuring modes: Elapsed time, split time, 1st-2nd place times, Hourly Time Signal, Button Tone Operation On/Off Auto Calendar (pre-programmed until the year 2099),12/24 Hour Formats, Accuracy: �15 seconds per month (with no signal calibration), Battery: CR2025, Approx. battery life: 7 Years,Module 3088, Size of case/total weight G9100 51.0 x 46.0 x 16.4mm / 53g Size of case / total weight.

Amazon.com Product Description:
This Casio men's G-Shock watch is perfect for seafarers; it provides moon data and a tide graph so you'll always know what the tide is. In addition, the digital watch also shows the time in 29 time zones, has three multi-function alarms, a countdown timer, a stopwatch, and auto electroluminescent backlight with Afterglow. The stainless steel case has a black resin bezel that provides shock resistance. A matching black resin band provides a secure fit and the watch is water resistant to 660 feet (200 meters). It is covered by the manufacturer's 1-year warranty.

Rating : - G-Shock Gulfman
Great watch. The watch is perfect for surfing, as you dial in the tide for your local beach. The Gulfman meets all of my needs and the case is bulletproof.