Aube, Le Locle. Produced in the 1950s. Very fine, astronomic, self-winding, stainless steel and yellow gold plated gentleman's wristwatch with triple date and moon phases.\n\nC. Three-body, two-tone, polished and brushed, yellow gold plated bezel, band and concave lugs, steel back. D. Matte silver with applied gold dart indexes and Arabic numerals, outer graduation for the days of the month, apertures for the days of the week, the months and the moon phases. Yellow gold "Alpha" hands, "bâton" with black arrow for the date. M. Cal. 90, rhodium plated, 17 jewels, straight line lever escapement, monometallic balance, self-compensating flat balance-spring.Signed on the dial.Diam. 35 mm. Height 11 mm.