The Zodiac 72B is a vintage automatic watch movement known for its robustness, reliability, and classic engineering. It was introduced around 1970 and became a popular choice in Zodiac’s Sea Wolf and other notable models, marking an era of technical innovation in Swiss watchmaking.
Technical Features
21 jewels reduce friction, increasing movement longevity and accuracy.
26mm diameter and 5.1mm thickness, making it suitable for robust sports watches and divers.
40-hour power reserve offers comfortable autonomy before rewinding.
Operates at 21,600 vibrations per hour (vph), balancing durability and precision.
Sweep seconds hand with hacking (stop-seconds) function for precise time setting.
Functional Attributes
Automatic winding with a ball-bearing rotor for efficient power generation.
Quickset date and day indicator for convenient calendar adjustments.
Triovis regulator allows micro-adjustments for accurate timekeeping.
Shock-absorbing system protects the movement from impact damage.
Historical Significance
Collaborative origins with Doxa, Girard-Perregaux, and others for shared technical advancements.
Used in rare, collectible pieces such as the Girard-Perregaux Observatory Chronometer.
Maintenance Notes
The movement’s cannon pinion friction may decrease over decades, a trait shared with similar 1970s calibers, requiring specialized adjustment for reliable timekeeping.
Most components are accessible for service, but some repairs (especially on the center wheel/cannon pinion) demand professional skill.
The Zodiac 72B remains a respected choice among vintage enthusiasts for its engineering quality, convenience, and historical connections in Swiss horology.
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Watch Parts Enquiry
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Stem, Crown, Hands & Spares might be available for this movement.
Email us for rate and availability: [email protected]
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