Breguet, the innovator. Type XXI 3817 flyback chronograph Equipped with the famous flyback function characteristic of Type XX chronographs produced by Breguet since 1954, the Type XXI 3817 chronograph features all of the technical and aesthetic characteristics of an authentic pilot’s watch. The sapphire crystal case-back reveals the exquisite details of the mechanical movement, including its silicon components and gold oscillating weight. History is still being written.
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