Universal Tri-Compax ref 22259, a stainless steel triple calendar chronograph wristwatch with moon phase, circa 1950. Dial: silvered, apertures for day, month and moonphases. Calibre: cal. 481 manual winding, 17 jewels. Movement number: 212392. Case: stainless steel brushed and polished round, snap-on back. Case number: 946997. Closure: brown leather strap. Dimensions: 34 mm diameter. Signed: case, dial and movement. Accessories: none.