A 19th Century Swiss lever in a decorative three colour gold open face case set with turquoise. Keywind gilt Lepine calibre bar movement with suspended going barrel. Plain cock with blue steel regulator, plain three arm gilt balance with blue steel spiral hairspring. Ratchet tooth lever escapement. Signed engine turned gold dial with Roman numerals, blue steel Breguet hands. Attractive 18 carat open face case with applied three colour gold decoration and set with turquoise on the back and bezels. Wound and set through the signed and numbered gold cuvette.