Hamilton WW2 ships chronometer Model 22 completely original, restored movement

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This watch is an excellent timekeeper. It willrun for approximately 60 hours on a single winding. It is intended, however, to be wound atthe same time every day. An up/down indicator shows the winding condition. A detailed description of the timepiece can be found in Whitney's book: Military Timepieces . The Hamilton Watch Co. put many very sophisticated innovations into this deck chronometer, and it may be arguably the finest mass produced lever escapement timepiece. Some of the innovations incorporated into this watch include a 60 in. long mainspring (unheard of for this type of watch, it insured a steady amount of power) and a unique biaxial thermal expansion type of balance wheel coupled to an Elinvar hairspring. It also has a "safety setting device" to prevent accidental time change. The box features a plaque describing this device and how to use it. The face, hands, and movement on this example are original and in excellent condition. The beautifully lacquered navy brass is excellent throughout. The unit comes in an original Hamilton three section box complete with observation lid, glass viewing section and brass gimbal. The box shows very slight signs of use commensurate with having been used in the U.S. Navy for over 40 years. Chrome Hamilton Watch Co., Lanscaster, PA, U.S.A. name plate on the front of the box. Finely restored read more

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