Tianjin Watch Company makes a family of compact automatic movements sold as TY6C or TY6D, as well as ST61 when sold by Sea-Gull.
| Complications | Jewels | Diameter | Height | |
| TY6D1K ST6112 | Date at 3:00 | 23 | 19.80 | 6.15 |
| TY6DS-1 ST6103K | Skeletonized | 17 | 19.80 | 6.03 |
| TY6C1K ST6102 | Open heart | 23 | 19.80 | 6.15 |