A 20th Century Swiss lever minute recording chronograph in a stainless steel open face case. Gilt three quarter plate keyless movement with going barrel, the flyback minute recording chronograph work above. Plain cock with polished steel regulator, uncut bimetallic balance with overcoil hairspring. Club foot lever escapement. Signed grained steel dial with subsidiaries for continuous seconds and 30 minute record, flyback centre seconds chronograph. The innermost chapter of black Arabic numerals for the time with the seconds markings outside. Beyond this two further scales in blue and red markings, blue steel hands. Plain stainless steel open face case with clip on back marked “Staybright”. Short stainless steel chain.