A very slim early 19th Century Swiss cylinder in an engraved open face case with male ratchet key. Keywind gilt Lepine calibre movement with suspended going barrel. Plain cock with polished steel regulator. Plain three arm gilt balance with blue steel spiral hairspring. Polished steel cylinder, steel escape wheel. White enamel dial with Roman numerals, delicate blue steel hands. Slim engraved and engine turned 18 carat open face case. Wound and set with a male key through the engraved and engine turned gold cuvette. Short gold chain, gilt ratchet key with a male square.