Aircraft Clock, 8-day Civil Date Indicator Aeronaval (CDIA) WWII DC-3 This altimeter has a service

This altimeter has a service stamped date of March 1991

The instrument has a test button at the bottom right corner to check the functioning of the indicator

cold weather

and possibly others

The Remote Indicating Compass system is described in the Index of Aeronautical Instruments dated 1944 as follows:

Aircraft Clock, 8-day Civil Date Indicator Aeronaval (CDIA) WWII DC-3 This altimeter has a serviceHere is a fine example of a WWII era CDIA Aircraft Clock, 8 day, 24 hour dial, made by Waltham. According to the Waltham website: Approximately 134. 000 CDIA aircraft clocks where produced and equipped with Walthams famous 37 size, 8 day movement, housed in a black aluminum case secured to the aircrafts instrument panel. The crystal glass was secured by a bezel and gaskets to seal the movement against dust. The bezel assembly enclosed the civil date