As a fan of pilot's wristwatches I am very happy with this Airain type 20. It's really beautiful and well done. I really appreciate the plexi glass and the 'retour en vol' function (very difficult to see in modern reinterpretations of pilot's watches like Tutima, Hanhart, Longines and others. Only the modern and very different from their historic models, the too much expensive Breguet and Zenith have the flyback function). So, thank you for your efforts and congratulations for the result. It's magnificent and really accurate to one of the historic french type 20 watches !!!