Fine centre-seconds movement with Patent Up/Down indicator, circa 1900.
Large three-quarter plate centre seconds, keyless (openface set) going-barrel movement with balance-brake, jewelled to the 3rd (centre), the top plate also engraved with Russell’s TEMPUS FUGIT trademark, the 18-size frame stamped PAT.20134. Single-roller detached lever escapement. Compensation balance, balance-spring with overcoil. Lovely single-sunk off-white signed enamel dial with state-of-wind sector at 6 in almost perfect condition, gilt and blued-steel hands. 47 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 this S J Morgan patent.
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.
The dial with just a minor edge flake near 12, otherwise complete and unbroken. Not cleaned by me and tries to tick when wound, but sold as needing at least a service and fresh oil to work properly.
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