The upper and lower seem to be different sizes on the 625. I tend to work more with the 620 and some times get them mixed up.
@JimInOz chart above says the lower shock is from a ca440. I think this is the common oval ladies movement. The upper one is listed as a 1010 base caliber, which is one of the cost saving notaquartz movements from the same era.
At least with these movements, they are plentiful, and it is easy to get more and more. Until the parts no longer fit into the cute little box one got for them.
This is still an area where one can look for bulk assortments. Outside of art collages, there is not much demand for the small cocktail ladies movement sizes. I suspect there are billons out there in the wild. I notice that assortments of jewels and mounts are often listed on the material house sites under 'art' or steampunk supplies. Think of these springs as watch glitter.
There is also a wealth of 'generic Swiss' movements from the 1960s and 1970s. Imported to the US and other contries by the millions under many different names. I tend to favor A Schild. ETA of course merged in with what became Omega and Swatch. Fontmailion turns up a lot. Such things make for great practice watches. Back when I was starting boxes of these could be had at NAWCC marts.
Now with hindsight, I am more likely to recommend getting a complete working watch to start with. That way one can learn how things should work together.
None of this will ever save money or time. Especially when it comes down to the subtle differences of parts. And who even knows if a project watch found on an auction site is even from the same watch what left a factory.
It comes down to the three R's. Research, Research and Research. There is a reason a cal 552 is not really compatible with a ca 562 even if some parts are shared. It is the little things like shock springs, and calendar quicksets. The plates may seem interchangeable, but unless one has them side by side can the subtle differences be seen. Even the winding stems and clutches can have slight variations for clearances on one but not the other caliber.
Finding jewel settings takes a lot of research. It is easy to be disappointed. I thought I found a similar part online. The seller never shipped. Traced them to a floreda pawnshop, which may have gone defunct. When I filed a claim, the parts started moving through the system. On arrival they were the wrong parts. Sellers do not care, If you do not buy it someone else will, and be just as disappointed. If you complain, they block you to keep their ratings up.
We all go through this learning curve (or never really learn the lesson.) Eventually the research pays off and we have more items in the spare parts box.
Similar things happen with sewing projects, and electronics projects. I always find it interesting that there are clothing fasteners in the bottom of assorted watch parts. And resistors tend to show up in the strangest of places.
What one really needs to do is to set up a parts breeding program. Not quite sure how that works, but such things to tend to breed when one is not looking.
Incabloc springs like breeding around the corks of empty assortment bottles. Just never the one you need.
