Hamilton Tank – Masterpiece – 1950’s - 14K YG – Cal 770 – Serviced

Hamilton Tank Masterpiece with light gray dial and Arabic numerals and gold batons for each hour with Masterpiece engraved at 12 o’clock. At 6 o’clock you have the sub dial for the seconds. The hands are in gold with Dauphine style. The crown comes with the Hamilton logo. The watch has a 14K yellow gold back case with engraved inside “Hamilton Watch Co. – Lancaster PA – 14K gold – C98934”. The watch comes with a manual winding movement with caliber 770 with 22 jewels. The watch comes with a brown lizard strap. The watch has been serviced.

History

The company was founded in 1892 and in 1900; over 50% of the population had a watch from Hamilton Watch Co in Lancaster, PA. In 1915, Hamilton started the production of the caliber 986. During the art deco period, Hamilton had tremendous success with the “Coronado”, “Spur” and “Piping Rock”. Then came the 982 calibre in the 1930’s and the famous caliber 500. In 1937, the company supplied the US army. In 1966, Hamilton took over Buren watch. In 1969, it stopped to produce mechanical watch in the US. Then came the revolutionary “Pulsar”. Today, the company is own by the Swatch Group.

Technical details

Hamilton manual winding movement with caliber 770 with 22 jewels, 18,000 A/h and approximately 45 hours of power reserve. It was produced in Lancaster, PA from 1955 to early 1960’s. The movement is serviced. 

Measurements

Diameter excluding winding crown: 28mm


Length including lugs: 39mm