Breitling Chronomat 769

Case : 18 K pink gold, push back, bidirectional rotating bezel with slide rule function Dial : Two-coloured silvered, luminous Arabic numerals, central hundredths of a second display, Swiss patent imprint "217012" (Adrien Schweizer, Pièce d'horlogerie permettant d'effectuer des opérations tachymétriques et télémétriques / timepiece for tachometric and telemetric operations), luminous hands Movement : Manual Case no : 666381 Ref : 769 Diam : 36 mm Circa : 1946 Ctry : Switzerland An aviator's rare pink gold Geneva vintage wrist chronograph with 45 min. counter and rotating bezel with slide rule function