So this morning, I took one of my GW-200's out of storage and put it on to wear. A few seconds later - poof - the "low battery" indicator started blinking and the time display turned off. Fair enough. It had been in that box for a good 2 months at least.
Long story short, I put the watch under a 100W worklamp before I left for work at 8:00am.
At 5:00pm, I got home and picked up the watch. The strange thing is that the display was completely black. "Strange", I thought. I pressed the buttons on the watch. Beep, beep - that worked. Then I touched the back of the watch with my fingers and nearly burned myself. I touched the crystal and it was also burning hot!
I would guess that the temperature of the watch was around 150 degrees fahrenheit or more. I'm not sure what temperature is required to turn the LCD totally black, but it was darn hot.
So, I quickly ran the watch under cold water, all the while thinking, "Great, I just destroyed a Frogman. Maybe I can fix the LCD or CASIO can fix it for me." However, about 20 seconds under the tap later, the watch display reappeared and about 10 seconds later was good as new!
So now it's 11:19pm and the watch has full battery bars and is still working perfectly. Unbelievable! I was very impressed. Heat resist indeed! My arm might get burned off but the Frog will still remain.