Seagull Caliber ST6
Seagull Caliber ST6

Seagull Caliber ST6

Manufacturer Seagull
Caliber Number ST6, TY6D1K, TY6XX
Movement Type
Automatic, self-winding mechanical
Depends on version
Jewels 17
Beats per hour 21,600 vph, 3Hz
Power Reserve > 36 hours
Anti-Shock System Incabloc clone
Hand-Windable? Yes
Functions Central hours; central minutes; central seconds; date at 3:00
Hacking Seconds? Yes
Country of Manufacture Made in China
Known Models
(Please add your watch in the comments below…)

The Seagull caliber ST6 (aka TY6XX) is an automatic movement with 30 jewels made in China.

Tianjin and Seagull are the same company (Tianjin Seagull Watch Group), but they have offices in Tianjin, China as well as Hong Kong. Apparently the different caliber numbers correspond with where the movements ship out of.

You’ll notice no engravings or inscriptions on the movement or rotor. Not even a jewel count.

ST6 Variations:

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  • ST6D
  • ST6DM
  • ST6DLM

ST6 Grades:

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Brands Using This Caliber:

One known brand using the caliber ST6 series in their watches is Timex.

Additional Resources:

Note: This caliber listing is still being updated, but feel free to start discussions on it in the comments below…

Seagull Caliber St19

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