| A 20th Century Swiss minute recording lever chronograph in an open face case. Gilt three quarter plate keyless movement with going barrel. Polished steel flyback minute recording 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, subsidiaries for minute record and continuous seconds, Roman numerals, blue steel hands. Plain 9 carat open face case , depressing the gilt winding crown to operate the chronograph, maker's mark "R&S" in a rectangle.
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