20+ year old Tag Heuer Kirium. I would never spend that much on a watch, but it was given to me as an "Achievement Award" by the company I work for. It's the most indestructible watch I've ever experienced. The first time I got the battery changed I took it to an authorized Tag service rep and it was like 50 bucks to replace the battery and "pressure test" it. After that I just started doing it myself and it's still just as waterproof as it ever was.
