The Zodiac 75B watch movement is a notable vintage mechanical caliber primarily found in Zodiac Aerospace GMT watches from the 1960s. It is an automatic movement that beats at 21,600 vibrations per hour (vph) and features a power reserve of approximately 40 hours. Known for its reliability and precision during the era, the 75B movement remains a sought-after caliber among collectors and watch repair professionals.
Key highlights of the Zodiac 75B movement include:
Automatic mechanical movement used in vintage Zodiac Aerospace GMT models.
Operating frequency of 21,600 vph, which provides smooth sweep and accurate timekeeping.
Power reserve of around 40 hours, offering practical daily usability.
The movement is relatively rare today, making parts and complete units difficult to find.
It was used in GMT watches, featuring a bi-directional bezel and GMT functionality, allowing tracking of multiple time zones.
The 75B movement is part of a family of vintage movements that Zodiac integrated in collaboration with other Swiss manufacturers.
Collectors value watches powered by the 75B for their historical significance and technical craftsmanship. However, sourcing spare parts can be challenging due to the movement’s age and rarity, which requires specialized watchmaking skills for maintenance and restoration.
This movement exemplifies mid-20th century Swiss watchmaking, blending robust automatic winding and GMT complication in a compact, reliable caliber. Watches with the 75B movement encapsulate Zodiac’s heritage in functional and stylish tool watches.
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Stem, Crown, Hands & Spares might be available for this movement.
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