Seagull's ST17 Movement

The ST17 movement, equipped with 20 jewels and vibrating at a frequency of 21,600 times per hour, currently serves as the foundational movement in the series, renowned for its classical elegance in the "small three-hand" design. Movements featuring a small seconds sub-dial are often referred to as "small three-hand" or two-and-a-half hands.

Evolved from classic pocket watch mechanisms, it boasts a steady 39-hour power reserve. This automatic caliber features reliable performance, compact structure and exquisite craftsmanship. As a mature base movement, it blends vintage charm with stable daily accuracy, favored for crafting timeless and practical mechanical watches.