Casio pusher button for amw707

[lexacat]

So my wife re-discovered my first "real" watch that I bought many years back and thought I'd lost. It's a Casio ani-digi amw 707. Not really my cup of tea anymore, but would be great to get it back into running condition.

Unfortunately someone younger than me managed to rip one of the pusher buttons off and lose it. I've had a dig around on the web and have found some generic kits with random pushers, but nothing that seems correct.

Anyone know how I can properly source a replacement, including circlip? Watch looks like this fella:

[lexacat]

I've (properly) removed one of the other chrono pushers to get an idea of what I need. I think it's a friction fit unit, so I've bought a set of generic pushers from Ali-X hoping one of them will be the right thing, or at least close enough to work. I've also ordered a box of ~150 various pusher circlips because hoooo boy are those things hard to reinstall.

So hopefully in a month or so I'll have what I need to get this guy working again.