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Master Navigational GCT Watch AN-5740 4992B 24 Hour and Carrying Case

Hamilton

Master Navigational GCT Watch AN-5740 4992B 24 Hour and Carrying Case

Not for Sale

This artifact resides in our Private Collection, yet we welcome inquiries from restorers, museums, or serious enthusiasts. Please email us with the name of the artifact at Curator@AeroAntique.com.

This is an authentic WWII-era GCT (Greenwich Civil Time) Master Navigational Watch AN-5740 Hamilton Part No 33106, Grade 4992B 22 jewel movement, suspended within an original metal Carrying Case. The watch has a serial number prefix of AF43, evidence of a 1943 manufacturing year.

The watch rests suspended on shock-springs within the carrying case, and can be viewed through a glass window by rotating the metal door to reveal the watch. The metal case was also intended to shield the watch from possible magnetization set up by stray electrical currents within the airplane.

The watch winds and runs for ~48 hours, which is its minimum specification.  Has not been recently serviced.  


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