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999P Hour wheel and hands "Click" to Login or Register 
I have Hamilton-Ball 999P-B647947 1938

Does this use 992B parts, hour wheel and hands??

Thanking you for your help!
Posts: 2 | Location: Illinois in the USA | Registered: December 26, 2012
I also have Ball B637304 serial number indicating a production date of 1930. Does it also use 992B Hamilton hour wheel and hands??
Posts: 2 | Location: Illinois in the USA | Registered: December 26, 2012
IHC President
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Picture of Lindell V. Riddle

Hello Dennis,

Knowing I am a bit late to the dance, the parts you were asking about on both your watches are the same as those for a Hamilton 992-Elinvar of the same era. When they engineered the entirely new in 1940 Hamilton 992B their claim and the reality was that nothing interchanged from earlier "Pre-B" models. So always remember the "Pre-B" and "B" separation line when seeking any movement parts or hardware as the movements are entirely different. Even the "hole-sizes" in the hands are different, there is no interchangeability.

Hope this is of help to you and others,


Posts: 10553 | Location: Northeastern Ohio in the USA | Registered: November 19, 2002
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