Seagull Caliber ST1780 (TY2714)

Manufacturer	Sea-Gull
Caliber Number	ST1780, ST-1780, TY2714
Movement Type	Automatic, self-winding mechanical
Diameter	Unconfirmed
Height	6.26mm
Jewel Count	28 jewels
Beat Rate / Frequency	21,600 bph / 3 Hz
Lift Angle	Unconfirmed
Power Reserve	40 hours
Hand-Windable?	Yes
Anti-Shock Device	Incabloc style
Hand Count	5
Functions	Central hours; central minutes; small seconds at 6:00; pointer date subdial at 2:00; power reserve indicator between 10:00 and 11:00
Hacking Seconds?	Yes
Country of Manufacture	Made in China
Known Models	1963 19 ZUAN Aviation watch, Sugess 1780 Automatic, Corgeut Power Reserve ST1780 (Add your watch to the comments below…)

The Sea-Gull caliber ST1780 (aka TY2714) is an automatic movement with a power reserve indicator as well as a small seconds and pointer date complication.

Additional Resources:

• More Seagull mentions