A mid 20th Century Swiss lever in a gold full hunter case and signed presentation case. Nickelled 15 jewel split three quarter plate keyless movement with going barrel. Plain cock with steel regulator, uncut bimetallic balance with spiral hairspring. Club foot lever escapement. Signed white enamel dial with subsidiary seconds, Roman numerals, blue steel hands. Plain English 9 carat full hunter case, gold cuvette, maker's mark “ALD” and “Vertex – Made in England”. In original signed presentation case covered in red morocco.