Large centre-seconds movement with Patent Up/Down indicator, circa 1900.
Three-quarter plate centre seconds, keyless (hunter set) going-barrel movement with balance-brake, jewelled to the 3rd (centre), the top plate also engraved with Russell’s TEMPUS FUGIT trademark, the 20-size frame stamped PAT.20134. Single-roller detached lever escapement. Compensation balance, balance-spring with overcoil. Lovely single-sunk off-white enamel dial with up/down sector at 6, gilt hands. 49.5 mm diameter, 10 mm deep, not including centre arbor.
Thomas Russell & Son, one of the largest and most famous Liverpool watchmakers of the period, and the only manufacturers of watches with S J Morgan’s patents.
S J Morgan, PATENT No 20,134, October 1899. Winding indication for going-barrel watches (much harder to achieve than with a fusee) incorporating differential gearing using a tangential pinion running within a slot in the pillar plate. NB. Russell produced two forms of this Patent, this being their best quality example with lovely sector up/down.
Lacking c-secs and state-of-wind hands, the dial with just a minor chip near 6, and rather dirty. Otherwise complete and an unusually large size. Not cleaned by me but will tick when wound.
Warning: Last items in stock!