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Although some of his techniques may be frowned upon by the Swiss Watchmaking school fraternity, I would always recommend Practical Watch Repair by De'Carle. A very good book for discovering old school techniques and methods and should most certainly be in your library. Also, you can't go wrong with Henry Fried. I have compiled some of the better books here... https://www.watchrepairtalk.com/books.html/watch-servicing-repair/

I just finished cleaning & servicing this Waltham 18s 11jewl key wind model 1857 from a run production of 100. It took days to get the case all cleaned up,and it needed a balance staff &mainspring. Also a nice new crystal What interested me in the first place is it has the key built into the crown so you don't lose it. Apparently it wasn't a popular option because it didn't last. I bought it from a guy that didn't know of this feature or he would have charged me a whole lot more.

It's a little higher with thicker acrylic on the top . Like an old diver with plexi. Not much higher on the inside. I use ATCT on old Certina DS-2 . Even if it's not a diver. Looks nice and feels nice with that think acrylic . What size do are you using. Maybe have some i can measure for you?

Maybe a low dome won't work. But think a ACT crystal should work. Almost every watch i seen can have a ACT . But if you want a high dome . Use the ATCH crystal. Or as it is a Diver a ATCT .

Are there any identifying makers marks on the case? It may require a special glass, which you may find in here http://www.fourniture.dk/lindholts_download/Sternkreuz_Gesamtkatalog_G22.pdf There are some other dimensions in this catalogue, but I always find it lacking in info for standard crystals

I would use a normal low dome crystal that has this diameter. Or if it's to tight and the chapter ring is in the way i would use a ACT crystal with tension ring . And remove the tension ring.

De Carles book is old and very good for "vintage watches", basic mechanics and tools. vin

http://www.watchmaking.se/BOOK/Book_PR/Book_PR.htm

That is also the book I would say is a must to have. Mind you any book by De'Carle is worth having.

Brilliant and very beautiful watch!

Thank you sir! Sent from my iPhone using Tapatalk

The next step was to service the movement - clean case - buff crystal - and here is the finished watch.

Okay uh.. let me rephrase everything. This is the first "serious" watch forum I've been too. I'm surprised there are so many watchmakers here. I know quite a lot, but I will spend my entire life learning. Hopefully I can pick up some knowledge here.

I've just tried searching SELSW2001M and it found both that and SELSW2001MR. When you find something not working on Cousins use the form mentioned above to notify them.

There's no kit as of yet, but I may consider it if there's enough interest. But I'm not sure if it will be economically viable. It's the sort of thing you can build for well under $50 yourself by scrounging parts, but a low volume kit might end up costing as much as a Chinese timing machine.