The Tianjin TY2800 family consists of automatic movements that are similar in design to the Miyota 8200 family. These are commonly used as-is in budget automatic watches and as ebauches for further finishing, decoration, and complications on more expensive models. The basic components have also been remanufactured and finished in Switzerland, earning them a Swiss Made label despite the engineering and basic construction origin.
Like the Cal. 8200 family, the ST16 movements feature indirect drive for the seconds hand. This gives them a characteristic “stuttering” seconds hand when moved suddenly.
| Calibre | Complications | Jewels | Diameter (mm) | Height (mm) |
|---|---|---|---|---|
| TY2806 ST1612 | Date at 3:00 | 21 | 26.00 | 5.76 |
| TY2807 ST1601K2 | Skeletonized | 21 | 28.00 | 5.18 |
| TY2807-1 ST1601K2-1 | Skeletonized Hand-winding | 18 | 28.00 | 3.75 |
| TY2808 ST1602K | Skeletonized | 21 | 26.00 | 5.18 |
| TY2808-1 ST1601K1-1 | Skeletonized Hand-winding | 18 | 26.00 | 3.75 |
| TY2809 ST1601K3 | Skeletonized | 21 | 31.00 | 5.18 |
| TY2816 ST1632 | Day and date at 3:00 | 21 | 26.00 | 5.76 |
| TY2826 ST1642 | Date at 3:00 Outer day at 12:00 | 21 | 29.40 | 5.76 |
| TY2846 ST1622 | Central 24 hour hand Date at 3:00 | 21 | 26.00 | 5.76 |
| TY2866 ST1651 | 24 hour hand at 2:00 Date at 4:00 Month pointer at 6:00 Day pointer at 10:00 | 21 | 28.00 | 6.48 |
| TY2867 ST1653 | Date at 3:00 24 hour hand at 6:00 Day/night wheel at 6:00 Day pointer at 9:00 Month pointer at 12:00 | 21 | 28.00 | 6.48 |
| TY2868L ST1692 | Month pointer at 3:00 24 hour hand at 6:00 Date at 6:00 Day/night wheel at 6:00 Day pointer at 9:00 | 21 | 26.00 | 6.45 |
| TY2869 ST1654-4.5 | Month pointer at 3:00 Date at 4:30 24 hour hand at 6:00 Day/night wheel at 6:00 Day pointer at 9:00 | 21 | 26.00 | 6.45 |
| TY2871 ST1661 ST16L | Month pointer at 3:00 24 hour hand at 6:00 Day/night wheel at 6:00 Day pointer at 9:00 Big date at 12:00 | 21 | 28.00 | 6.57 |
| TY2872 ST1655 | Date pointer at 3:00 24 hour hand at 6:00 Day/night wheel at 6:00 Day pointer at 9:00 Year at 12:00 Month at 12:00 | 21 | 26.00 | 6.40 |
| TY2876 ST1652 | Date pointer at 3:00 24 hour hand at 6:00 Day/night wheel at 6:00 Day pointer at 9:00 Month pointer at 12:00 | 21 | 28.00 | 6.48 |
| TY2876SK ST1652K | Skeletonized Date pointer at 3:00 24 hour hand at 6:00 Day/night wheel at 6:00 Day pointer at 9:00 Month pointer at 12:00 | 21 | 28.00 | 6.78 |
| ST16N ST16N1 | Date at 3:00 24 hour hand at 6:00 Power reserve at 12:00 | 21 | 29.00 | 6.33 |
| ST16Q | Central date pointer Day/night wheel at 6:00 Day at 11:30 Month at 12:30 | 21 | 28.00 | 6.98 |
| ST16Q2 | Central date pointer Month pointer at 2:00 Day/night wheel at 6:00 Day pointer at 10:00 | 21 | 28.00 | 6.98 |
| ST16S | Date pointer at 2:00 Month pointer at 6:00 Day pointer at 10:00 | 21 | 26.00 | 6.33 |
| ST16S2 | Date pointer at 3:00 24 hour hand at 6:00 Day/night wheel at 6:00 Day pointer at 9:00 Month pointer at 12:00 | 21 | 26.00 | 6.30 |
| ST16S3 | Date at 3:00 24 hour hand at 6:00 Day/night wheel at 6:00 Day pointer at 9:00 Month pointer at 12:00 | 21 | 28.00 | 6.30 |
| ST16S5 | Date pointer at 3:00 24 hour hand at 6:00 Day/night wheel at 6:00 Day pointer at 9:00 Year at 11:30 Month at 12:30 | 21 | 28.00 | 6.36 |