Swiss nickel minute recording flyback chronograph Circa 1900

Nickel flyback chronograph 
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A Swiss nickel open faced minute recording flyback chronograph watch, circa 1900. Gilt three quarter plate keyless movement with going barrel, flyback centre seconds chronograph work above the plate, plain cock with polished steel regulator, uncut balance with overcoil hairspring, club foot lever escapement. White enamel dial with Roman numerals, centre seconds and subsidiaries for minute record and continuous seconds, Roman numerals, blue steel hands. Plain case. The chronograph operated by the winding crown.
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Diameter: 51 mm
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Signed: No name