
Penelope Andrews
Head of Department
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Sold for £8,960 inc. premium
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Produced from 1959 to 1962, the Jaeger-LeCoultre Deep Sea Alarm was designed for divers whose safety depended on precise timing. Equipped with the Caliber 815, the world's first automatic bumper alarm movement, it beats at 18,000 vibrations per hour and offers a power reserve of approximately 45 hours. This watch features a vibrating alarm that can be felt and heard underwater and was tested to depths exceeding 500 feet.