1942 "One-Button Chronograph", probably used by the Medical /Military.
Missing the chrono-sweep hand.
Thanks to daca for the crown, and to JP for the hands, great stuff. :-)
In reply to Thanks guys. by bobbee
Thanks guys, the hand is a blue fils from the look of them on the others I've seen, but the only info regarding the 10AH sweep second hand is in the 1955 catalogue of interchangeable parts, as there is no mention of the sweep second hand in the 1954 hands booklet. The info on p.24 for the sweep hand just says "10AH".
No idea of the tube height or diameter, or the length.
I know that the post for it looks very short, any seconds hands that I have tried do not fit, but they were non-Bulova as I am loath to remove any from the Bulovas I have.
In reply to Just wondering how you by gtopaul