The Casio G-Shock Frogman is one of the newer additions to Casio's popular 'Master of G' collection of highly-durable and high tech wrist watches. These very impressive time pieces are constructed to withstand the most treacherous environments imaginable.

• 58.3 x 52.8 x 18.0mm 'Tough' Resin Case  
• High-Grade Casio Resin Band
• Black Dial, Positive LCD
• Bluetooth
• Solar Powered
• Spherical, Sapphire Crystal
• Shock resistant
• Neobrite
• Super Illuminator
• Screw-Lock Crown
• Auto light switch, afterglow
• Flashes with buzzer that sounds for alarms, hourly time signal, countdown timer, progress beeper, and stopwatch auto start
• World time 29 time zones (48 cities), city code display, daylight saving on/off
• 1/100-second stopwatch Measuring capacity: 23:59’59.99” Measuring modes: Elapsed time, split time, 1st-2nd place times Other: 5-second countdown auto start
• Countdown timer Measuring unit: 1 second Countdown range: 24 hours Countdown start time setting range: 1 minute to 24 hours (1-minute increments and 1-hour increments) Others: Auto-repeat, progress beeper on/off
• Power Saving Mode
• 3 multi-function alarms (with 1 snooze alarm)
• Hourly time signal
• Full auto-calendar (to year 2099) 12/24-hour format
• Button operation tone on/off
• Regular timekeeping: Hour, minute, second, pm, month, date, day Accuracy: ±15 seconds per month
• Approx, battery life: 10 years on CR2025
• Module 3433