First quarter of 20th century silver cased open face keyless lever watch, Omega, 5457589, the frosted gilt and jewelled movement with bi-metallic cut compensated balance and blued steel overcoiled hairspring with lever escapement to a signed Roman enamel dial with outside minute track, sunk subsidiary seconds and gilt moon hands in a hinged case with engine turned back cover centred with a vacant cartouche and with coin milled band, Birmingham 1919, maker's mark ALD, 379726, width 5.1cm