Hamilton Model 21 WW2 Ship Chronometer Escapement Jewel

This is an inspected escapement jewel for a Hamilton model 21 movement from a former chronometer repair shop. The model 21 is the large spring detent escapement chronometer. This jewel is used for both the escape wheel (top & bottom) and the balance staff (top & bottom). Jewels may be red or clear, according to what we have in stock. 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.