Swiss Lever by Omega

An early 20^th Century Swiss lever in a nickle open face case.  Gilt split  three quarter plate keyless movement with going barrel.  Plain cock with polished steel regulator, compensation balance with blue steel overcoil hairspring.  Club foot lever escapement.  Signed white enamel dial with subsidiary seconds, Arabic numerals, blue steel hands.  The movement hinging out of the single body nickel open face case with screw on bezel, Omega maker's mark.