Manufacturer | Tianjin Sea-Gull |
Caliber Number | TY-2871, TY2871 |
Base Family | ST16 (based on Miyota 8 series) |
Movement Type | Automatic, self-winding mechanical |
Lignes | 11.5”’ |
Diameter | 26mm |
Height | 6.57mm |
Jewel Count | 21 |
Beat Rate | 21,600 bph |
Lift Angle | 46 degrees (unconfirmed) |
Power Reserve | ~36 hours |
Rotor Winding Direction | Bi-directional (Magic Lever) |
Hand-Windable? | Yes |
Anti-Shock Device | Incabloc style |
Hand Count | 5 |
Functions | Central hours; central minutes; central seconds; double digit big-date at 12:00; pointer style day of the week subdial at 9:00; pointer style month subdial at 3:00; day/night indicator at 6:00 (sun and moon disc) |
Hacking Seconds? | Yes |
Country of Manufacture | Made in China (Tianjin city) |
Known Models | (Add your watch to the comments below…) |
The Tianjin Sea-Gull caliber TY-2871 is a triple-date automatic movement with a day/night indicator. This caliber is based on the ST16 family of movements.
As with most Made in China watch movements, technical documentation for the TY2871 is basically non-existent.
Replacement Prices:
Replacement prices for individual movements were found in the range of $35.19 USD to
Additional Resources:
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