Front, Dial, Back, Case mark, Movement, 2nd view of movement, 3rd view of movement

The Hamilton Model 23 Chronograph was the workhorse chronograph for all the U.S. military services during WWII. It was also the only complicated watch that Hamilton produced.

This is a nice clean example with serial number P1149. These watches are adjusted to temperature and 3 positions with the Elinvar hairspring and monometallic balance that is also found on the 992B and other Hamilton watches of the period.

This watch has no ordnance markings on the case and may have been sold for civilian use after WWII.