The "Five Star" brand watch was renamed the "May Day" brand in 1957.

The "Five Star" brand watch is the first brand that appeared after our country was able to manufacture and produce watches on its own. At the end of 1954, the Tianjin public-private partnership Warwick Watch Factory (now Tianjin Watch Factory) decided to develop and produce watches on its own.

The factory recruited four experienced masters including Jiang Zhengyin to research and produce at the same time. It took a full 4 months to trial-produce my country's first watch on March 24, 1955. . This is a 15-diamond mechanical watch, all made by hand. The dial is plated with three gold characters "Made in China" and five gold stars. It was named the "Five Star" brand. In 1957, the watch was renamed the "May Day" brand. .

Extended information:

Since China's first watch was born on the eve of May Day, the factory leaders decided to name the "Five Star" watch brand "May Day" after research, and the factory The name was changed to "Tianjin Wuyi Watch Factory".

Until 1966, scientific researchers from Tianjin Wuyi Watch Factory finally produced a new type of mechanical watch through their own design and research and development, which was eventually named "Dongfeng". This epoch-making product is what it is today. The predecessor of the "Seagull" watch, in 1973, the "Dongfeng" watch entered the international market under the trademark "Seagull" and became China's first export watch.

Baidu Encyclopedia-Five-Star Watch