Mido, "Powerwind", No. 2522886. Produced inthe 1960's.Center-seconds, self-winding, stainless steel diver's wristwatch. three-body, polished, revolving gra-duated bezel for the decompression times. matte silver with painted Arabic numerals, in a polychrome spiral for the decompression times and depth indications on a black background. "Dauphine" and "Bâton" tritium-coated hands for the minutes. Cal. 619, rhodium-plated, 17 jewels, straight line lever escapement, monometallic balance shock-absorber, self-compensating flat balance-spring.Dial, case and movement signed.Diam. 38 mm.