French mother-of-pearl miniature desk clock, cased

French mother-of-pearl miniature desk clock, early 20th century, of Art Deco style with silvered wavy engine-turned luminous Arabic dial having heart-shaped mock pendulum lenticle at 6, within mother-of-pearl bezel, back-wound timepiece movement, on two brass ball feet and mother-of-pearl cased hexagonal base, stamped beneath 'Metal Doré', 6cm high, in original lancet-arched double door display case with gilt stamp of 'A. Lancel Paris, 49 B'd. Montmartre Paris', 7.2cm high overall