A late 19th century marine chronometer, the two day fusee movement with Earnshaw type spring detent and bimetallic balance, the silvered circular dial with Roman hour numerals, subsidiary state of wind and seconds dials, inscribed 'D. McGregor & Co makers to the Admiralty, Glasgow & Greenock', and numbered '2021', housed in a brass bowl hung in gimbals, within a brass bound rosewood three-section case, the front with applied maker's plaque, total height 18.8cm (some faults).