An early 20th Century Swiss lever in a diamond set gold and enamel open face case and pendant. Keyless gilt bar movement with going barrel. Plain cock with polished steel regulator. Compensation balance with blue steel overcoil hairspring, club foot lever escapement. Signed gilt dial, Arabic numerals, blue steel Breguet hands. Slim gold open face gold case, clip on back with a border of white enamel to the translucent light blue enamel over an engine turned ground. Central cluster of diamonds in a white metal setting. Matching bow shaped gold and enamel diamond set pendant brooch.