Vintage AIRAIN Type XX chronograph mechanical Cal. 22 Steel case 37mm 2 foto As you can see at

As you can see at the pictures it has very special and popular movement - Cal

This nice model of NOMOS Glanshutte has a popular automatic movement cal

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Vintage AIRAIN Type XX chronograph mechanical Cal. 22 Steel case 37mm 2 foto As you can see atMontres Airain, a subsidiary of Dodane (the official supplier of the French Air Force), was the official and exclusive supplier to the French Army during the postwar period. The present watch, the famed Type 20, was supplied to the Armys helicopter divisions. The 3 star marking on the outer caseback signifies that this chronograph has received one of the highest distinctions from CETEHOR (CEntre TEchnique de l'industrie HORlogre), created in 1945 to