A late 19^th Century Swiss cylinder in an unusual diamond set gold bracelet.  Keywind gilt bar 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.  Translucent dark blue enamel over an engine turned ground for the dial, gilt Arabic numerals, gilt hands. Circular diamond set bezel hinges from the bracelet with the movement and gold cuvette fitted with a small turnbuckle to wind the watch.  The band of the bracelet formed from three tapered rectangular strands partly set with small diamonds.  Hinged at the side, gold clasp with fine safety chain.