Energizer SR621SW 10-Pack Watch Batteries - Long-Lasting Silver Oxide Button Cell for Watches, Calculators, and Small Electronics - Perfect for Timex, Casio, and Seiko Watches

Good productUsed almost all of them alreadyEl pedido llegó en perfecto estadoBatteries work well.Photo in the listing is of a retail package. Apparently, what is shipped is one (or more) 5-packs from a BOX for industrial use. It is the same battery - no worries there. Just more basic package, ie: the Energizer logo doesn't have the red and yellow "swoop".Here's the rub: the industrial packaging does not have a "use by" date. The box from which these come has the expiry info. HOWEVER, the back is stamped with a mfg. date code. After an hour or so on research on the Internet, I have come up with 2 codes ZA (mine) means mfg. 5/2018 and JA means a mfg. date of 10/2018. Energizer says they have an 8-year shelf life.Just installed this battery yesterday. It occurs to me that there's no way I'll go through 10 batteries before I lose my watch. However, for someone who might want to buy in bulk, these are packaged with the foil back like gum so that you could take one battery out without spilling and losing the rest of them. Can't speak on longevity of course, but I can say that my watch is ticking.Good quality. I bought this product to replace all my batteries for my watches and it last long. I had them before and run out so I have to order it again.Recommended.I run a church garage sale and we get a lot of modest priced watches, because it costs the donor almost as much as a new watch to get a replacement battery most places. Not many watches use a 364 type battery, which is why they cost a little more than the more commonly used 377. Usually within 5 minutes, you can pop the back off of most moderate priced watches and replace the battery. Most can be pried open with an ordinary pocket knife. I use a pair of nail-nipping pliers to open the harder ones. Always use a silver oxide battery for replacement, because the much cheaper alkaline batteries leak when they go bad, and ruin your watch.Great priceVery fast and accurate description. Thanks.Très bien fonctionne très bienWorks and many batteries for the money.J'ai reçu l'ensemble plus rapidement que prévu et j'en suis très satisfait. Ensemble correspondant à ce que j'avais besoin.