Just as an FYI, I found that in addition to these tools I needed a watch press to press the backs onto many of my watches. This set will resupply me with a couple of tools to replace some of mine that haven’t lasted as well as I had hoped. Though, if it weren’t for this price/deal, I probably would have waited longer before replacing them.
I have 34 watches in my collection and with the exception of a pressure test kit for testing the seals on some of my dive watches, I have been saving a lot of money doing my own work. I need to use a press to close the backs on many/most of my watches after changing batteries. I found a cheap press works well enough but I bought this one:
https://www.amazon.com/gp/aw/d/B00PVNPSV2?ref=ppx_pt2_mob_b_prod_image
to replace the one I had in order to replace some of my dies. I’ve used this brand before and have been pretty pleased with their products. So if your new to replacing your own batteries, you may find you need help closing the watch back. Take my word for it, many watch backs can not be pressed back securely without such a tool. Again, this is just an FYI. A number of my friends have borrowed my press to close their watch backs prior to buying their own.