I foolishly left one of my watches sitting in the way of direct sunlight for about 40 minutes. It's ~85 degrees outside today. When I recovered the watch (titainium case), it was a hot to touch as you would expect, but not burning so that it couldn't be handled. The whole case, bracelet, crystal were definitely pretty heated up. I took it away from the sun and kept it on my wrist in room temp.
This just happened and the time seems to be accurate. Anybody know if this type of exposure can cause harm to the movement? Was this type of heat enough to cause any expansion or distortion of the metals inside? I intentionally didn't cool it down rapidly (ex, fridge) because I didn't want a sudden change in temperature extremes.