A 20th Century Swiss lever in a gold half hunter case. Gilt split three quarter plate keyless movement with going barrel. Plain cock with polished steel micrometer regulator, compensation balance with blue steel overcoil hairspring. Club foot lever escapement, screwed in jewelling. White enamel dial with subsidiary seconds, Roman numerals, blue steel half hunter hands. Plain 18 carat half hunter Dennison case with blue enamel chapter ring. Gold cuvette engraved with a dedication , maker’s mark “ALD” in a rectangle.