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Probably for the piezo sounder on the inside of the case back, have you tested the alarm function?

I work on vintage watches. Aside from that I make components (barrel arbors, escape wheels, whatever they want). This is for new watches. When presented with a "no parts" edict from the manufacturer, in my case, it's usually because there are literally no parts available. So I make them, and charge them, and everyone is happy. Might be a staff or stem, might be a complete pallet fork. No spare parts available, even to the manufacturer, they pay the dork with the know-how and equipment to do it. 50 years down the road I hope there's a few more geeks doing this 'cause I'll be 98 and probably not hitting the lathe every day haha. End of the line for oddball stuff someone has to make it. And that's not cheap. And they aren't getting rich. And there are fewer and fewer of those folks. And laser welding and 3D printing are not the panacea.

Obviously not you

Go to your first pic, on the left side is your movement , the ring is right around the movement.

Replacing the mainspring is described as a best practice by Mark in his watch repair courses when servicing watches for paying customers. However, servicing and reusing a mainspring that isn't set and in otherwise good condition is perfectly fine in my book.

Even if some feels so, always replacing the mainspring at service isn't a standard or best practice. A good repairer makes the call based on various factors. For most vintage pieces, meant to be worn occasionally, even a somewhat degraded mainsping performance is perfectly acceptable.

Hi, Just thought I would share. The glass pot is from Marks and Spencer, some kind of pudding was in there originally. The lid is from a Pringles tube. They fit together pretty much perfectly. I also use the Pringles lids on their own for small parts when I am working on a movement. Steve.

And finally... KIF Spare Material Catalogue Cover.pdfKIF Spare Material Catalogue P54-103.pdf KIF Spare Material Catalogue P104-135.pdf

I don't know anything about parts compatibility or availability, but would it not be less risky and only a litlle more expensive to replace the whole movement?

I just checked eBay, someone is asking $2500 for a pair of Western Electric 300B vacuum tubes. Any takers?

Seiko 7025-5010 1978 blue dial, just finished.

No worries, technical info like this should be free for all to access.

Thank you for your effort and making it available to all. commendable.

2nd installment, that's me done for today. I should be able to copy the rest of it tomorrow. KIF Spare Material Catalogue P18-53.pdf

This is the intro, the book is 135 pages long and my scanner's very slow so it's going to take a bit longer than I thought... a Sunday job. KIF Spare Material Catalogue P1-17.pdf

I'll see what I can do with my scanner over the weekend