Hamilton Model 21 WW2 Ship Chronometer Trip Spring chronometer We also have the repair

We also have the repair manual for sale that we can download

Note: the movement ring is sold separately

WW2 ERA NAVY AERO NAVAL clock in fine condition circa 1943-1945

This watch has been oiled

which was spun off from the watch business in 1957

Hamilton Model 21 WW2 Ship Chronometer Trip Spring chronometer We also have the repairThis is a "trip spring" for the spring detent (shown in picture to its right) for a Hamilton model 21 movement (last picture). Over time the end of the trip spring wears and it must be replaced. Note that we service these chronometers and have more parts. Email us with your needs. We also have the repair manual and can download you a copy. Photo of model 21 movement for display purposes only.