Case: Two-body, polished and brushed, dust protecting cap, flat bezel, concave lugs, screwed down case-back.Dial:Matte silver with applied stainless steel Breguet numerals, outer engraved minute divisions, subsidiary guilloche seconds dial. Steel feuille hands.Movement: Cal. 12'''120, rhodium-plated, fausses cotes decoration, 18 jewels, straight- line lever escapement, monometallic balance, self-compensating blued steel Breguet balance spring, swan-neck micrometer regulator.Dial, case and movement signed.Dial, case and movement in good conditionDiam:35 mm Thickness 11 mmNOTE: Starting in 1942, the second series housed caliber 12-27 SC and has centre seconds. The reference 565 was replaced in 1952 by Ref.2533. It seems that only 60 examples of this model are known to the market and of this some, 20 are known to have been made in steel