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RAF Stopwatch, MK.3A


Code: M20269

Stores Reference 6B/221.  Probably by Smiths English Clocks Ltd.  Approx. 5cm diameter.  Intended for general application and aircraft use.  Keyless winding and running for a period of 8-hours from fully wound.  The chronograph action is controlled by the winding knob.  The design and action of this mechanism are such that the second hand should indicate correctly to one-fifth of a second, and that starting and stopping errors should not exceed one-fifth of a second.  White metal Dennison case with white dial, black hands and Arabic numerals and subsidiary minutes dial.  Engraved with  'A.M., 6B/221' and 1943 date code to the rear. Light marking/staining of the dial but in good working condition.  Stock code M20269.