English: Slide rule on a Breitling Navitimer watch. Original work by Torsten Bolten under CCSA 3.0. Cropped.
Français : Règle à calcul circulaire sur une montre Breitling Navitimer. Oeuvre originale de Torsten Bolten sous CCSA 3.0. Recadrée.
Deutsch: Breitling Navitimer 1 B01, mit der Lünette wird die Funktion einer Rechenscheibe nachgebildet. Originalwerk von Torsten Bolten unter CCSA 3.0. Zugeschnitten.
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