Sea-Gull, founded in 1955 as Tianjin Watch Factory, is China's largest mechanical watch manufacturer and the country's leading producer of in-house watch movements.

1955 | Produced the Wu Xing watch, China's first domestically developed wristwatch.
1958 | Produced the Wu Yi watch, the first mass-produced Chinese wristwatch.
1963 | Developed China's first aviation chronograph under Project 304.
1966 | Developed the Dongfeng watch.
2005 | Introduced Sea-Gull's first tourbillon.
2006 | Developed China's first minute repeater.
2007 | Introduced Sea-Gull's first perpetual calendar.