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Longines Ultra-Chron 18K solid gold Limited Edition

    • The Longines Ultra-Chron automatic high-beat-rate wristwatch was introduced in 1967 to mark the 100 year anniversary of the company which was founded in 1867.
    • Longines went on to produce several variations of the Ultra-Chron, including different case shapes, between 1967 and 1975.
    • High-beat watches were intended to provide greater consistency of rate in different positions and be more isochronous.