Gilt Minute Repeating Swiss Lever

A late 19^th Century Swiss minute repeating lever in a gilt metal open face case.  Gilt three quarter plate keyless movement with going barrel. Plain cock with polished steel regulator, compensation balance with blue steel overcoil hairspring.  Club foot lever escapement. Slide minute repeating on two polished steel gongs. White enamel dial with subsidiary seconds, Roman numerals, blue steel hands. Plain open face case with gilt slide in the band, gilt cuvette marked "Warranted gold filled cases to last 20 years".