After 1900 Mechanical WW wind/set Winding/Setting 1951 Mondia Graduate - Missing click spring AS 1950/51

[Mysteron]

Another watch from the box...I noticed a fairly good price on these with loads of watchers on ebay when I looked for parts.

bidfun-db Archive: Watch Movements: AS 1951 (Standard 1951)

www.ranfft.de

This Mondia Graduate seems to have a perfectly working wheel train but when you wind it up, it spins off as fast as you let go with the click swinging out of the way
I watched a disassembly video for the AS 1900 and 1950 and noticed there should be a little hairspring under the click.
I removed the ratchet wheel and... no click spring.


Part 430
I found one offered on ebay for $10 but it is from an old watch? would this be ok or should it be NOS rather?



I've never heard of the brand but the movement seems good as far as 17 Jewels go and the bridges are finished very artistically with a nice texture, has the typical annoying date setting mechanism where the date changes as you wind the hour hand from 21:00 to 24:00, but otherwise it seems really nice.

If you have anything more to share or comment, have a ball.

 

[roughbarked]

Heaps of these about.

 

[Mysteron]

I've started getting an idea of what side of watchmaking I want to get into.
And it happens to be case restorations, as I love playing with electroplating and deplating, derusting and polishing stuff, I've always done little restorations, and I think my skillset will work well with it. Also want to get into dial resto, reprint, resilvering etc. I have more stuff than I could use in a lifetime I think and loads of cases I could practice and test on.

Getting some running at this stage is just a bonus. But I really love watching as many youtube vids of movements being taken apart and rebuilt also.
We will see where this goes... I've had a number of interesting high-detail hobbies before.

Heaps of these about.