Seagull ST1901

The Sea-Gull ST1901 is the top shelf hand wind chronograph watch movement by Sea-Gull.

The Tianjin Sea-Gull Watch Group (Chinese: 天津海鸥) is a watchmaking company located in Tianjin, China. Founded in 1955, it is the world’s largest manufacturer of mechanical watch movements, producing one quarter of total global production by volume.