Diamond Set Gold Ring Watch

A late 19^th Century Swiss cylinder in a diamond set gold ring.  Keyless 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. Small white enamel dial with black Arabic numerals, the twelve marked in red, blue steel hands.   Gold ring with chased and engraved sides and shank.  Diamond set bezel which rotates to wind and set the watch.