An early 20th Century English lever with power reserve indication in an unusual gold half hunter case. Gilt three quarter plate keyless movement with going barrel. Engraved cock with polished steel regulator, compensation balance with blue steel overcoil hairspring. English table roller lever escapement, escape and lever pivots with endstones. Signed engine turned silver dial with subsidiaries for power reserve and seconds, Arabic numerals, blue steel hands. Plain 18 carat half hunter case, the front cover with an unusually large glazed aperture , blue enamel chapter ring. Plain gold cuvette, maker’s mark “TR” in a rectangle and number corresponding to that on the movement. Brown morocco covered case with easel stand.