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What movement is in the watch? A picture of the movement would be helpful.
There were cases that used a tension ring that sat on top of the movement ring. It looks like your case is one of those. That ring...
Bulova recommended Moebius 8030. Their part number for that wheel is 4F.
A best practice is to closely examine each part during disassembly (and correcting any issues found) and then examine again during assembly. This...
Yes, .15 mm. Thank you for catching that! It was late when I posted.
Here is a picture of the No Go gauge for 214 stem/crowns. It's 1.5 mm thick and springy, not rigid.
If you're going to be doing a lot of 214 work I would suggest keeping your eyes open for a no-go gauge. It is slid under the crown...
I'm glad you were able to get it cleaned up! :) The ink that was used is pretty durable. I've cleaned a lot of cases without damage...
I would be very interested in seeing the different methods that Larry Blanchard presents. He worked at the Bulova Service Center when I was there...
The ones I've used have a knob type thing on the top that is turned to increase the amount of bristles sticking out, as they wear and break off...
A fiberglass scratch brush is intended to remove rust off parts and not for general cleaning of parts.
I got those numbers from an Accutron technical sheet that I got when I worked at one of Bulova's Service Centers in the late 70's -...
I don't know if you have these specs: dia. of 214 coil wire - .015 mm, total length 180 meters.
Get a watch tin and cut foam to fit in the top and bottom, thick enough so that when the top is on, the pieces touch each other. They should fit...
And just because it wasn't used originally doesn't mean that it not a good practice. :)