The jeweler at the mall wanted $50 to replace the watch battery in my Tag Heuer. I said what about to change the battery in my Seiko? Also $50. I replied that $50 is 1/3 the cost of this watch. To which he said, Yes but it's only 1-2% the cost of the Tag Heuer....

Needless to say I said to hell with that, and purchased this watch key here, along with some $2 batteries at the drugstore. Sure I don't have the luxury of pressure testing the watch after replacing the battery, but what do I care...I'm not diving with a $4000 watch on...