I just checked to see if this "bezel wind" 6A/1002 "ONE DAY" Cockpit Clock is listed in Konrad Knirim's British Military Timepieces book. There is one listed and illustrated but it has 'dummy hands' turned by means of a central knob on the glass which would enable elapsed time to be measured. Mine does not have the dummy hands function. Still uncertain as to which type of plane my clock would have been used in. Book states the movement is 36 hours.

Cheers

dunk