Heavy silver double back crystal case with Broad Arrow engraved on the rear cover, hallmarked London 1916, casemaker FT (Fred Thoms). Nicely finished three-quarter plate keyless movement jewelled to the 2nd, with cap jewels on balance (diamond), lever and escape. Single-roller detached lever escapement, the steel club-tooth escape with polished tips, free-sprung balance-spring with overcoil. Signed enamel dial, original blued-steel hands. 58 mm diameter.
Danish born Asmus Johannsen, head of the London firm that rivalled Victor Kullberg in the quality of their work, achieving many top places at both the Greenwich and Kew Chronometer and Watch Trials.
The ICI records held at Greenwich show that this watch was purchased by the admiralty in 1917 and spent the last year of the war at the Royal Naval port of Rosyth. In 1934 it was sold to the Royal Engineers based at Woolwich and thus escaped being engraved with the usual HS^2 (Hydrographic Service) markings.
Dial with the faintest of hair cracks between 2 and 3 (it does not photograph) and a small edge chip in the flat glass, otherwise in very good original condition, surviving rather better than most Deck Watches. Serviced, guaranteed, and sold with a copy of its Royal Navy record.