Gold Omega Dress Watch

A mid 20^th Century Swiss lever dress watch in a gold open face case.  Nickelled split three quarter plate 17 jewel keyless movement with going barrel.  Plain cock with polished steel regulator, compensation balance with blue steel overcoil hairspring.  Club foot lever escapement.  Signed white metal dial with subsidiary seconds, Roman numerals at alternating hours, blue steel hands, the hour hand with a large circle.  Plain slim 9 carat open face case, clip on back and bezel maker's mark "Omega" in a triangle.  In a green velvet lined presentation case.