A slim early 20th Century Swiss lever by Patek Philippe in a gold open face case. Keyless damascened nickelled bar movement with going barrel. Plain cock with polished steel regulator, compensation balance with blue steel overcoil hairspring. Club foot lever escapement. Signed gilt metal dial with subsidiary seconds, Arabic numerals, blue steel hands. Slim plain 18 carat open face case, single hinged back with Patek Philippe maker's mark and simple dedication.