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RB01366A1C2S1
Weight: 149
Encased in robust steel with an ergonomic black ceramic bezel
A17375E71G1S1
The Super Chronomat comes in several color and metal variations
Ultra-chron Classic Collection_Defy RB01366A1C2S1In 1968, Longines launched the Ultra Chron Diver, the first dive watch equipped with a high frequency movement. At the time, Longines had already established itself as a pioneer in high frequency technology. As early as 1910, the winged hourglass brand created the first high frequency timekeeping device capable of measuring 1 10th of a second. In 1959, Longines developed the first high beat movement for a wristwatch, an observatory chronometer that
