I am very happy to see that you can replace watch batteries this easily! Battery Etc. sells batteries for $ 10-$ 12 each, and will put them into your watch for that price, and it only takes 5 – 10 minutes. They also sell replacement watch bands, although I didn’t check on the price of them. I have several watches that I really like, but they all use batteries instead of wind-up. Most were not expensive — between $ 10 and $ 15 from the drug store or wherever, but I do have a few that were gifts, and I would like to be able to use them again. I have previously checked with Costco, and they don’t generally sell the odd battery for replacement. As with everything else, your best bet with Costco is to buy a whole whack of batteries at once, and they can thusly offer the big discount. So that doesn’t help me much with these watches! Beware, though: Battery Etc. only accepts cash or debit!