Aircraft Clock, 8-day Civil Date Indicator Aeronaval (CDIA) Waltham WWII KC-135 made by Tokyo Aero Indicator

made by Tokyo Aero Indicator Co

part number 1818-1-A

indicating a manufacturing date of 1958

This is a slaved Directional Gyro made by Aircraft Instrument Manufacturing for Aviation Safety

The knob adjusts the accuracy of the reading by calibrating the instrument to the current barometric pressure as shown in the small window above center

Aircraft Clock, 8-day Civil Date Indicator Aeronaval (CDIA) Waltham WWII KC-135 made by Tokyo Aero IndicatorHere 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