| A 20th Century German 30 minute recording chronograph in a silver open face case. Gilt three quarter plate keyless movement with going barrel. Thirty minute recording flyback chronograph work above the plate . Plain cock with polished steel regulator, compensation balance with blue
steel overcoil hairspring. Club foot lever escapement. White enamel dial with flyback centre seconds chronograph, subsidiaries for 30 minute record and continuous seconds. Small red numerals for the hours 13 to 24, luminous Arabic numerals and hands, Engine turned silver open face case, maker's mark "" in an oval.
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