Good 21 jewel model adjusted for Temperature and 6 positions, circa 1947.
Keystone screw back and front gold filled case, the rear with applied American flag decoration. 16-size lever-set, grade 992B, 21 jewelled movement. Detached lever escapement, with Hamilton's monometallic balance and matching balance-spring made of their specially developed 'Elinvar Extra' material. Double-sunk enamel 'Montgomery' dial with every minute numbered, the five minutes in red, matching hands. 51 mm diameter.
Hamilton Watch Co, Lancaster, Pennsylvania, one of the best known American watchmaking firms, famous for their precision watches and chronometers using their wonderful Elinvar balances and springs - see the books by Marvin Whitney.
Dial with the usual faint hair cracks near 6, the case showing noticeable wear to the plating and the E PLURIBUS UNUM flag motive shows signs of being re-fixed. Otherwise in good original condition. Not cleaned by me, and priced accordingly, but ticking happily when wound.
Warning: Last items in stock!