Accompanied by Patek Philippe Extract from the Archives confirming production of the present watch in 1962 and its subsequent sale on May 18th of the same year. Further accompanied by an undated Patek Philippe Certificate of Origin and Guarantee, and a Patek Philippe presentation box.
This model was designed to allow the easy change of the leather bracelet against a metal version by unscrewing a metal ring fixed onto the case back and revealing the lugs, hence its name convertible. Although the Extract of the Archives confirms the sale of the present watch with leather bracelet, it is thought that reference 3419 was also typically delivered with the metal version.
Reference 3419 was introduced into the market in 1960, the same year as the anti-magnetic caliber 27-AM 400, an improved version of the 1958 caliber 12'''400, now fitted with a Gyromax balance, gold lever and free sprung self-compensation Breguet overcoil hairspring.