| Production: – | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1910s | 1920s | 1930s | 1940s | 1950s | 1960s | 1970s | 1980s | 1990s | 2000s | 2010s | 2020s |
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 |
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