Master Navigational GCT Watch AN-5740 4992B 24 Hour and Carrying Case H-46 used to measure and indicate

used to measure and indicate to the pilot the altitude over the terrain during flight

This is a Cowl Flap Position Indicator for a 4 engine aircraft as used in the WWII-era US Navy Patrol Bomber PB2Y Coronado made by Consolidated

a straight tube such at this one

according to the Maintenance Interchangeability Cross Reference Chart dated Dec 1943

Likely made by the 1st Moscow Watch Factory (refer to 0358 at USSRTime

Master Navigational GCT Watch AN-5740 4992B 24 Hour and Carrying Case H-46 used to measure and indicateThis 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