1942 Hamilton GCT 22j WWII 4992B Military Army Navigation Pocket Watch .800 Case

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1942 Hamilton GCT 22j WWII 4992B Military Army Navigation Pocket Watch .800 Case:
$2499.99

Grade: 4992B

•

• Manufacturer:

• Hamilton

•

• Manufacturer Location:

• Lancaster, Pennsylvania

•

• Movement Serial Number:

• 4C49827

•

• Grade:

• 4992B

•

• Model:

• 5

•

• Estimated Production Year:

• 1942

•

• Run Quantity:

• 50,000

•

• Total Production:

• 144,995

•

• Size:

• 16s

•

• Jewels:

• 22j

•

• Movement Configuration:

• Openface

•

• Movement Finish:

• Nickel

•

• Movement Setting:

• Pendant

•

• Plate:

• 3/4 Plate

•

• Adjusted:

• Yes

•

• Adjusted # of Positions:

• 6

•

• Adjusted to Temperature:

• Yes

•  

• Super Rare NOS In Box As Pictured!!!!

•  

• This 22 Jewels 16 Size True WWII Air Mans issues watch. Get a piece of working USA WWII history with this fine working Hamilton 4992B in clean & Good Condition and working great and checked for time keeping. This has the rare US. Gov marking on the movement.

Please look at all pictures.

Original Dial.

Please See Pictures

Engraved On The Movement G C T

Hamilton Watch Co.

USA.

4992B

22 Jewels

Adjusted 6 Positions

With Keystone Case .800 Fine Solid Sliver watch case, very rare!!!

Double Roller

Included is the Rare Brass U.S. Army Aircraft watch case with glass intact as pictured!!!!!

WWII 4992B Pocket Watch History

During World War II, Hamilton produced a variety of time pieces to support the war effort. In fact, all of Hamilton\'s production was dedicated to defense purposes. However, they did still produce some wrist watches using excess movements produced in the 1920\'s.

One of the war-related watches was a pocket watch with a central sweep second hand. The movement was based on the 21 jewel, 16 size 992B movement. However, an extra jewel was added to support the second hand pinion, so the movement got 22 jewels and was called the 4992B.

The 4992B is known as a \"Navigator\'s Watch\" as it was used by aviators to aid in navigation by the US Navy during the war.

Here\'s a couple of advertisements from WWII-era Life Magazines that featured the often see 4992B\'s in a case or a box that was intended to isolate it and protect it from shocks or accidental damage.

If you look closely at the dial, you\'ll see that it\'s a 24 hour dial so it takes a full day for the hour hand to make a full rotation. 12:00 noon on a 24 hour dial looks like 6:00 on a 12-hour dial. The minute hand still makes it around the dial in one hour, so the ratio of the minute hand to the hour hand is modified using a different minute wheel and hour wheel ratio.