Hamilton Model 21 WW2 Ship Chronometer Trip Spring Screw watch WW2 ERA NAVY AERO NAVAL

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

4 7/8" Long

This is an inspected used vintage hour hand for a Hamilton model 21 Ship Chronometer from a former chronometer repair shop

Comes with a new old stock 18mm brown leather band

Hamilton Model 21 WW2 Ship Chronometer Trip Spring Screw watch WW2 ERA NAVY AERO NAVALThis is the tiny "trip spring screw" that attaches the trip spring (first picture) to the spring detent (shown in picture to its right) for a Hamilton model 21 movement (last picture). We suggest you use (or purchase) a small sliding pin vise to hold the screw and to screw it into place. This type pin vise is often used to remove and hold balance wheel screws. Note that we service these chronometers and have more parts. Email us with your needs. We