This Sea-Gull ST1780 is a round automatic watch movement with a calendar, energy display, and sub-dial. Its 28 jewels and 21,600 vph frequency support reliable timekeeping, while the 40-hour power reserve keeps it running through a day off the wrist. At approximately 6.26mm thick, it fits slim watch cases and is available in packs of 1, 5, 10, or 50 pieces.
Key Features
Brand
Sea-Gull
Model Number
ST1780
Item Type
Movement
Winding Mode
Automatic Winding
Shape
Round
Thickness
Approx. 0.2 in
Number of Jewels
28
Frequency
21600
Reserve Hours
40
Features
Calendar, Energy Display, Sub-dial
Country of Origin
Mainland China
Highlights
Features
Calendar, Energy Display, Sub-dial
Frequently asked questions
What is the thickness of the Sea-Gull ST1780 movement?
The movement is approximately 0.2 in (6.26mm) thick.
How many jewels does the ST1780 movement have?
It has 28 jewels.
What is the frequency of the ST1780 movement?
The frequency is 21,600 vibrations per hour.
How long is the power reserve of the ST1780 movement?
