A late 19th/early 20th century gold keyless...

A late 19th/early 20th century gold keyless chronograph pocket watch, the white enamel dial with Roman numerals, subsidiary seconds, sweep seconds operated by the crown and dial for 60 minutes, hand deficient, the gilt three quarter plate jewelled lever movement signed R Stewart Argyle & Buchanan Street Glasgow and numbered 256659, case with repeat numbers, case dia. 51mm