Stopwatch, Type A-8, Navigation Watch for Ground Speed 1944 "Jitterbug" w Box B-45 unscrew the collar (I) and

unscrew the collar (I) and pull the lamp support assembly straight out

But for an 80 year old instrument

There is a wax paper cover over its front and back

On the side are an integrated pencil sharpener and a rheostat knob to adjust illumination

The periscope would be positioned to view the terrain directly below the fuselage while in flight

Stopwatch, Type A-8, Navigation Watch for Ground Speed 1944 "Jitterbug" w Box B-45 unscrew the collar (I) andHere is an authentic WWII era aircraft navigator's Watch, Navigation (Ground Speed) Stopwatch, Type A 8, made by Elgin to Air Corps US Army spec #94 27749. With a serial # AC44 4348, indicating manufacturing year of 1944. Type A 8 stopwatches were used in any WWII aircraft with a navigator, such as heavy (B 17, B 24, B 29) and medium bombers (B 25, B 26) and large transports (C 46, C 47, C 54). The outer ring of the dial counts up to 10 seconds and