Atelier Wen Seagull ST1901

The Seagull ST1901 is a manual-winding chronograph movement manufactured by the Chinese firm Seagull. It is a modern reproduction of the Venus 175, a celebrated Swiss chronograph caliber from the mid-20th century. Atelier Wen utilizes this movement in its Hao and Perception collections, maintaining it in production. The ST19 designation is also used as an alternative name for this caliber.