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1959 Bulova Sea King 11AFC and 1962 Bulova Model 23 10BZAC


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My latest restoration/repairs. A really nice 1959 Sea King cal 11AFC and an equally fine 1962 Model 23 cal 10BZAC. 

While I love the looks of the old Sea King, the 11AFC movement is not my favorite to work on re: fixed pallet stud and a very delicate click/click spring configuration that really doesn't make any sense at all.

On the other hand the Model 23 10BZAC is the a great Bulova workhorse movement from the past IMHO. Such a straightforward, robust design with good parts availability for vintage.

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58 minutes ago, Mfosterjeweler said:

Is the stem a male/female type. I've taken the crystal but can't get the crown out. 

 

Thanks for your help 

Marc

 

Is the stem a male/female type. I've taken the crystal but can't get the crown out. 

 

Thanks for your help 

Marc

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Do you have a picture of the case back?  Without that hard to tell (the 11AFC I’ve worked on are solid stem with a snap back case back).

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    • Thanks for the help guys! VWatchie I already found your thread but I'll check it again. Nice to know about acetone, I still have to get the shellac off since I made a little mess. I adjusted the jewel, put new shellac (the so called soldering technique, pallet tool too hot this time so the shellac "wire" melted in air before getting in contact with jewels or fork) rinsed the pallet fork and put it back dry. Amplitude is now in the 240-250 range that I expected in the first place. I guess there's enough oil in the escape wheel teeth already but I'll check that later. The mainspring was pretty beaten so a new one would probably boost the amplitude even further. Nice to learn new things. Now I have another thing to look for while disassembling. I wonder if the watch left the factory that way. 
    • Would be interesting to see it 🙂
    • These are all American movements (with the exception of the "Rubis"), and are all almost certainly "negative set" which means the stem is part of the case. So it's normal that they are all missing- they are with their cases. You will need male square bench keys to wind/disarm them. Vintagewatchstraps has a great writeup on the different systems. But basically, any American "x" size movement will fit any case for that size, possibly with some adjusting of the stem position. With Swiss movements, there is some interchangeability between calibers, usually within the same maker's range, but not really overall- there are thousands of different stems out there.
    • Hi, I'm very new to watchmaking and this is my first time posting here.  I've bought a lot of 10 vintage pocket watches size 0s from e-bay and just got them today.  Most of the balance wheels sprung quite freely and thus seemed like a worthy endeavor as a first batch for exploration.  I've just realized that none of them have any winding stems. Is there any way I could source appropriate winding stems for the movements? There seems to be assortments of various stems selling in bulk on aliexpress, but would any of them fit?  I've read on other threads that some people lathe their own stems (which is waaaay out of my current skill set, which is pretty much nil). Others say that you 'just have to try a few and see if they fit'. I would much appreciate any advice for this matter. Thanks!
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