| Production: – | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1910s | 1920s | 1930s | 1940s | 1950s | 1960s | 1970s | 1980s | 1990s | 2000s | 2010s | 2020s |
The Tianjin Watch Company makes a family of watches known as TY2700 or ST17. Most are automatic, apart from the TY2705/ST1700, and most have small seconds at 6:00.
| Complications | Jewels | Diameter | Height | |
| TY2705 ST1700 | Hand-winding Small seconds at 6:00 | 17 | 26.00 | 3.22 |
| TY2706 ST1701 | Small seconds at 6:00 | 20 | 26.00 | 4.65 |
| TY2707 ST1741 | Small seconds at 6:00 Big date at 12:00 | 20 | 29.00 | 5.95 |
| TY2708 ST1711 ST17F | Central minutes Small seconds at 6:00 Hour hand at 12:00 | 20 | 26.00 | 5.25 |
| ST17F2 | Small seconds at 6:00 Minute hand at 9:00 Hour hand at 12:00 | 20 | 26.00 | 5.25 |
| TY2709 ST1721 | Central minutes Small seconds at 6:00 Jumping hours at 12:00 | 20 | 26.00 | 5.70 |
| TY2711 ST1791 | Central retrograde date Week pointer at 6:00 Small seconds at 6:00 | 20 | 26.00 | 6.50 |
| TY2712 ST1742 | 24 hour hand at 2:00 Date at 4:30 Small seconds at 8:00 Hour and minute at 10:00 | 25 | 29.30 | 6.73 |
| TY2712(MS) ST1744 | Day/night at 2:00 Date at 4:30 Small seconds at 8:00 Hour and minute at 10:00 | 25 | 29.30 | 6.73 |
| TY2714 ST1780 | Date pointer at 2:00 Small seconds at 6:00 Power reserve at 10:30 | 28 | 28.00 | 6.44 |
| TY2715 ST1792 | Central retrograde date Month pointer at 4:30 Year at 6:00 Day pointer at 7:30 | 20 | 28.00 | 6.50 |
| TY2718 ST1731 | Date at 3:00 Small seconds at 6:00 | 20 | 26.00 | 5.12 |
| TY2721 ST1770 | Skeletonized Hand-winding Small seconds at 6:00 | 17 | 26.00 | 3.22 |
| TY2723 ST1771 | Skeletonized Small seconds at 6:00 | 20 | 26.00 | 4.65 |
