| A large 20th Century Swiss fast beat split seconds timer in a steel open face case. Gilt three quarter plate keyless going barrel movement with grained steel split seconds chronograph work above the plate. Plain cock with steel regulator, uncut bimetallic fast vibrating balance allow the time to be read to the nearest 10th of a second, overcoil hairspring. Club foot lever escapement.
Signed white enamel dial with split centre seconds rotating once in thirty seconds. Arabic numerals in black to 30 seconds and inside these to 60 in red. Subsidiary recording to 30 minutes, blue steel hands, the split seconds hand in red. Substantial open face steel case with two large buttons for the flyback chronograph, clip on bezel, cuvette and back.
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