Pocket watch movement with dial and hands. Half-plate movement, signed and numbered and additionally marked ‘AD.Fmsz’, ‘By Appointment to the Queen’, a crest for the royal appointment and a crest denoting gold medals of honour in France, Russia and Italy, with lever escapement and compensation balance. Centre-seconds chronograph mechanism and keyless winding.

The movement has a white enamel dial, signed and numbered and marked ‘AD.Fmsz’, with Roman numerals and steel spade and poker hands, with a sunken thirty-minute dial for chronograph above centre with a steel hand, a sunken subsidiary seconds dial below centre with a steel hand, and a centre seconds indication for chronograph with a steel hand.