A good early nineteenth century gold and enamel cylinder openface pocket watch, the reverse with translucent blue enamel on guilloche background decorated with gold and silver paillons, the bezel similarly decorated, the white enamel dial with Arabic numerals and quarter hour marks, blued steel moon hands, the frosted gilt cylinder movement with hanging barrel, monometallic balance and ruby end-stone, the hinged couvette inscribed Breguet a Paris, No. 134, with a similarly decorated gold key