Baume &Mercier, case No. 592572, 18K yellow gold wristwatch with malachite dial. Made in the 1980's
Case: Two-body, polished and brushed, stepped bezel, snap on case back .Dial: Malachite. Yellow gold dauphine hands. Movement: Cal 9P, flat, rhodium-plated, 18 jewels, straight-line lever escapement, monometallic balance adjusted to temperatures and 5 positions, shock absorber, self-compensating flat balance spring, micrometer regulator. Dial, case, movement and bracelet signed. Diam. 22 x 29 mm. Thickness 6 mm.