The Zodiac 72 is a notable vintage mechanical watch movement produced between 1958 and 1963. It is an automatic movement distinguished by its flat freesprung hairspring and DuraBalance regulator equipped with two regulating weights. This movement features shock protection through elastical balance spokes, combined balance settings, and an indirectly driven minute hand, which enables a larger balance and a robust rotor bearing. The Zodiac 72 includes functions like automatic winding and a sweep second hand, powered by two roller freewheels stacked on the rotor hub, with only a selfwinding gear ratchet present. Additionally, its crown mechanism uses a rocker bar design.
The movement’s technical details include 21 jewels and a frequency of 21,600 vibrations per hour (A/h). It has a power reserve of about 40 hours, making it reliable for extended wear. The case diameter commonly associated with watches using this movement is around 35 mm, typical of the era and models such as the Zodiac Sea Wolf. This caliber was highly regarded for its durability and serviceability and often used in Zodiac’s sporty automatic models.
Key features of the Zodiac 72 movement:
Mechanical automatic winding movement (1958–1963)
Flat freesprung hairspring with DuraBalance regulator
Elastical balance spokes for shock protection
Sweep second hand and indirectly driven minute hand
Two roller freewheels on rotor hub for winding efficiency
21 jewels, 21,600 A/h frequency
Approximately 40 hours power reserve
Used in Zodiac Sea Wolf and similar sports models
This movement is admired for its robust engineering and reliability, making it a significant piece in vintage Zodiac collector and enthusiast circles. Its combination of technology and aesthetics reflects the mid-20th-century advancements in automatic watchmaking.
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Stem, Crown, Hands & Spares might be available for this movement.
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