| An early 20th Century Swiss 30 minute recording split seconds chronograph lever in a gold open face case. Damascened nickel three quarter plate keyless movement with going barrel. Grained steel 30 minute recording flyback chronograph work above the plates with the split seconds work mounted
above. Plain cock with polished steel micrometer regulator, compensation balance with blue steel overcoil hairspring. Club foot lever escapement, escape pivots with endstones in a polished steel setting. White enamel dial with subsidiaries for seconds and 30 minute record, split centre seconds flyback chronograph, black Arabic numerals and red numerals for the minutes, blue steel hands. Plain 14 carat open face case, winding crown with flyback chronograph button,
split seconds button in the band. Monogram engraved on the back cover, number corresponding to that on the movement in the back and gold cuvette.
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