Universal Genève Aero-Compax A coveted, large, vintage Geneva pilot's wristwatch with chronograph, 30 min. and 12h counter, tachy scale and subsidiary memento dial at 12 o'clock Ref. 22414, Cal. 285, Case No. 752197, Dimensions 37 mm, circa 1940, Origin Swiss Case: steel, push back. Dial: black. Movm.: Manual. The coveted Aero-Compax with its four subsidiary dials is one of the most striking models ever produced by Universal Genève and has become one of the company’s signature watches. In addition to the small second and the 30-minute and 12-hour counters, the dial shows an unusual, additional time indication at "12". This 12-hour memento dial can retain a reference time for control purposes; the hands, which do not move otherwise, are set with the additional crown on the left. This Aero-Compax has a black glossy dial and four engine-turned, black registers. Its modern size of 37 mm creates a marvellous vintage look and makes it a fabulous collector’s piece. Case: very good. Dial: very good. Movm.: very good, capable of running, cleaning recommended. Case: very good. Dial: very good. Movm.: very good, capable of running, cleaning recommended.