Baume and Mercier. A Fine 18k Gold and Enamel Openface Keyless Lever Dress Watch

Baume and Mercier. A Fine 18k Gold and Enamel Openface Keyless Lever Dress Watch
Signed Baume and Mercier, Ref. 30'907, Case No. 288'909, Circa 1955
Gilt-finished lever movement, 17 jewels, mono-metallic balance, silvered matte dial, baton numerals, circular case, polychrome enamel portrait of a lady's head, copied from Boticelli's The Birth of Venus, snap on back, case, dial and movement signed
41mm diam.