Crown for 1956 President B

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Submitted by Deafboy on

I have a 1956 President (a black dial "B"). The crown is quite tired though and would like to replace it. Would someone have the reference number for this crown? 

Here's a picture of the crown I'm searching.

Deafboy
Posted December 30, 2024 - 10:15pm

The movement is a 11AC...

FifthAvenueRes…
Posted December 31, 2024 - 6:49am

Inside the Case within a rectangle will be a 4 digit #. 

If You can provide the Case number the correct Crown can be referenced. 

Deafboy
Posted December 31, 2024 - 7:22am

I looked inside the caseback and the inside of the bezel. The only markings I see are what appears to be hand-scribed roman numerals of the case serial number (IV - II - IV). Curiously the case number ends with 425, not 424. Both the case and crown are quite worn.



Deafboy
Posted December 31, 2024 - 7:24am

I forgot to mention there are also several watchmakers markings inside the caseback, but I assume you meant a stamped number.

FifthAvenueRes…
Posted December 31, 2024 - 12:47pm

Correct, unfortunately there isn't one.

take a look at Crown # 1012.

Someone else may be able to give a more definitive answer. 

Deafboy
Posted December 31, 2024 - 1:23pm

That's awesome! Thanks.

One more question. The acrylic crystal seems quite thick (e.g. high dome). I wonder if this is the correct profile for this watch. It seems to me a dress watch would have a shallower profile. OTOH, it may be just the style of the era to have such a profile. 

What do you think?

FifthAvenueRes…
Posted December 31, 2024 - 3:37pm

No, that Crystal is not the original style a low dome profile would be more consistent

Deafboy
Posted July 28, 2025 - 6:02pm

I tried a domed mineral crystal. It looked very nice but the hands were squished against the glass. I ended up installing a "GS PK" acrylic crystal. It has a higher profile than the mineral glass dome, but lower than the profile shown above.  Looks good.

Deafboy
Posted July 28, 2025 - 5:55pm

Here's an update:  I purchased on eBay a NOS #1012 crown. Have a look below to see how the original crown was worn out!


I also serviced the movement. It works very well now.   The dial had cosmetic issues. I unsuccessfully attempted to clean it. I therefore decided to refinish it completely myself. The top layer is electroplated black nickel. It’s hardly perfect but I’m happy with the outcome considering it’s the first time i did this process. I think it looks good.

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