A small late 19th Century Swiss cylinder in a gold and enamel open face case set with diamonds and split pearls. Gilt three quarter plate keyless movement with going barrel. Plain cock with polished steel regulator, plain three arm gilt balance with blue steel spiral hairspring. Polished steel cylinder, steel escape wheel. Off white enamel dial with Arabic numerals, gilt minute markings, pierced gilt hands. Deep 18 carat gold case, the back decorated in translucent blue enamel over an engine turned ground centred with diamonds. Bezels set with a row of split pearls. Gold cuvette, gold bow and clip to allow the watch to be worn on a neck chain.