| Manufacturer | Seagull |
| Caliber Number | ST6, TY6D1K, TY6XX |
| Movement Type | Automatic, self-winding mechanical |
| Diameter | 19.8mm |
| Height | Depends on version |
| Jewels | 17 |
| Beats per hour | 21,600 vph, 3Hz |
| Power Reserve | > 36 hours |
| Anti-Shock System | Incabloc clone |
| Hand-Windable? | Yes |
| Functions | Central hours; central minutes; central seconds; date at 3:00 |
| Hacking Seconds? | Yes |
| Country of Manufacture | Made in China |
| Known Models | (Please add your watch in the comments below…) |
The Seagull caliber ST6 (aka TY6XX) is an automatic movement with 30 jewels made in China.
Tianjin and Seagull are the same company (Tianjin Seagull Watch Group), but they have offices in Tianjin, China as well as Hong Kong. Apparently the different caliber numbers correspond with where the movements ship out of.
You’ll notice no engravings or inscriptions on the movement or rotor. Not even a jewel count.
ST6 Variations:
Check back.
- ST6D
- ST6DM
- ST6DLM
ST6 Grades:
Check back.
Brands Using This Caliber:
One known brand using the caliber ST6 series in their watches is Timex.
Additional Resources:
Note: This caliber listing is still being updated, but feel free to start discussions on it in the comments below…
network of watch sites
Recent Comments
Hi Omega caliber 571 and 570 escape wheel is same or different
Yep, 763e. That has to be it. Thanks for your confirmation. Many thanks
https://calibercorner.com/ronda-caliber-763e/
Ah, I believe it's a 763e Am I correct?
Glad you found it! https://calibercorner.com/ronda-caliber-763/
Without taking mine apart, I found the same exact watch with the Ronda movement. Face…
Hi Keith, please try posting a picture of the movement and watch in the forum.