My first Set of Sizing Tools

Sometimes a broken Screwdriver is a good thing
The thinner of the two pushers had been "home made". A screwdriver of a cheap USD 2 "Precision" Screwdriver kit (you all know those black plastic boxes I guess) broke off and instead of disposing it, I reduced the length to about 8 mm and filed the sharp edges off. The watch case holder was really just a compromise, since it was in my collection and since it was made of plastic, I used it because of the holes on the top, it was easier to push the link bars out that way.
A pair of good pliers with smooth jaw surfaces inside is often used, when link bars do not fall out completely. I prefer then to pull them out instead of pushing them through with a longer pusher. An other advantage of using the pliers rather then a long pusher is that you will not drive your pusher onto the bracelet with a sudden impact if the link bar suddenly loosens.

Resizing the SKX779K is not that easy ... #%$^%&
I once used a long pusher when resizing my Seiko SKX779K's bracelet and I ended up having those tiny link bar tubes stuck on my pusher. It was hard to take them off and in addition I had to squeeze them back to the original diameter so they would grip tightly on the link bars and prevent them from falling out. If you are not sure, whether those tiny retaining tubes are used, you better use a pair of pliers to pull the link bars out.