BAUME & MERCIER Baumatik 18k yellow gold gents wristwatch with neutral 18k yellow gold bracelet, Switzerland around 1970, self winding, textured rectangular case with curvic sidewards, case back screwed-down 4-times, gilded dial, raised indices, date at 6, gilded micro-rotor movement calibre BM 12820 with 30 jewels, precision adjustment, measures approx. 31 x 33 mm, length approx. 18 cm, weight approx. 94g, condition 3