Overview of the Tissot Seastar Navigator Chronograph
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Brand: Tissot
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Model: Seastar Navigator Chronograph
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Production Period: Late 1960s to mid-1970s
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Target Market: Sports and racing enthusiasts
Key Features
| Feature | Details |
|---|---|
| Movement | Tissot Caliber 872 (based on Lemania 1341 / 1343 automatic chronograph movement) |
| Chronograph | Central chronograph minute counter + central seconds hand |
| Case Material | Stainless steel |
| Case Size | Approx. 39–41mm (varies by reference) |
| Dial | Usually black, gray, or blue; racing-style subdials; tachymeter scale |
| Crystal | Acrylic |
| Water Resistance | Originally rated for diving (approx. 100m) |
| Bracelet | Integrated or steel bracelet; also available with leather straps |
| Crown & Pushers | Typically recessed or flush to maintain sleek profile |
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“UFO” Case Style – Some Seastar Navigator chronographs featured a bold, cushion or tonneau-shaped case that became popular in the 70s.
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Colorful Tachymeter Rings – Certain models featured orange or blue accents for high legibility and visual flair.
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Valjoux Versions – In later or rarer models, you may find hand-wound Valjoux 7734 movements instead of the Lemania automatics.
Collectibility & Value
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Vintage Appeal: Collectors love this model for its funky 1970s design, quality Lemania-based movement, and connection to Tissot’s rich chronograph history.
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Prices (as of 2024): Typically range from $1,000 to $3,500 USD depending on condition, originality, and movement.
Lemania Connection
The Seastar Navigator's automatic chronograph movement (Cal. 872) is closely related to Lemania’s 134x family, which was also used by Omega in models like the Omega Seamaster chronographs. Tissot and Omega were both part of the SSIH group, which explains the shared technology.
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