1. Rolex is a famous Swiss watch manufacturer, formerly known as Wilsdorf and Davis (Wamp; D) company, founded by German Hans Wilsdof and the British Alfred Davis formed a partnership in London in 1905. In 1908, it was registered and renamed ROLEX by Hans Weisdorf in La Chaux-de-Fonds, Switzerland.

2. Longines was founded in Soimia, Switzerland in 1832. It has a long history and exquisite craftsmanship of more than 180 years, and also has a distinguished tradition and outstanding experience in the field of sports timing. Longines, with its flying wing hourglass as its symbol, is famous for its elegance. As a famous brand under the Swatch Group, the world's leading watch manufacturer, Longines has spread in more than 130 countries around the world.

3. Vacheron Constantin, one of the most famous watch brands in the world, was founded in Geneva, Switzerland in 1755. It is the oldest and earliest watch manufacturer in the world and one of the most famous watch factories in the world.

4. Breguet is a brand of the Swatch Group. It was founded in 1775 and has a history of 240 years. Since the 18th century, the Breguet brand has been committed to providing works and services to members of the royal family and outstanding figures in various fields.

5. Patek Philippe is a famous Swiss watch brand founded in 1839, ranking first among the top ten famous watches in the world. It is one of the only remaining truly independent watchmakers in Switzerland. It produces its own watches from beginning to end, and it takes 10 years to train a PATEK PHILIPPE watchmaker.

Reference materials:

Baidu Encyclopedia Longines

Baidu Encyclopedia Rolex

Baidu Encyclopedia Vacheron Constantin

Baidu Encyclopedia Bao Ji

Baidu Encyclopedia Patek Philippe