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The Tianjin TY2100 family of movements is an automatic, 28,800 A/h clone of the ETA 2800 family.
- TY2100/ST2100: Automatic, day/date, 26 jewels
- TY2130/ST2130: Automatic, date, 26 jewels
- ST2153: Automatic, moon phase at 1:30, date by pointer at 6:00, retrograde power reserve indicator at 10:30