A rare gold perpetual calendar moonphase independant seconds and flying 1/5 second keyless chronograph hunter pocket watch in plain case, retrograde date indication, aperture above six for the day of the week, sweep centre seconds stopped by a button in the band, the frosted gilt two train bar movement with bimetallic balance, flat blued steel hairspring and endcurve jewelled throughout with lever escapement, under cuvette, the case numbered 52343 and hallmarked London 1879