An antique 18ct gold single button chronograph open face pocket watch; white dial, black Roman numerals, 1/5th second outer track, stem wind, push pin at 1 o'clock, chrono button at 2 o'clock, case hallmarked Chester 1895, jewelled plate movement and dial unsigned, inside case marked I.J.T.N, size 65 mm, excellent condition, not running due to unuse, needs cleaning and service, wt. 132.6g.