Watches don't come any more rugged than Casio's G-Shock models. Brutal testing ensures you of nearly indestructible
performance. EL backlight with afterglow. Countdown timer with input range from one minute to 24 hours. Accuracy
within 15 seconds per month. One-second auto-repeat function. 1/100th second stopwatch with elapsed time, split
time, and first- and second-place time. Hourly time signal. Auto calendar. 12/24 hour formats. Water-resistant to 660
ft.
Case Diameter: 1.8".
I have owned a Casio G shock for over 20 years now and just recently replaced my first G-Shock with a new G-Shock which ran on the same battery from when I bought it in 1991 until late 2011! The watch is durable, has taken a beating, been under water and never had a problem! It's the only watch I will buy and wear. Great for the outdoors and also for wear at the office. Excellent product.