What is a tourbillon watch? Is tourbillon collectible?

Tourbillon mainly refers to a device to eliminate gravity and improve the accuracy of watches. This device played a more obvious role in the pocket watch era in the past, but in modern times, people pay more attention to its beauty and technology. However, it should be noted that not all tourbillon are collectible. Only top brands such as Blancpain are more worthy of collecting tourbillon birds. There is a simple reason. Whether it's the handling of details, or the craftsmanship and appreciation of tourbillon birds, it should be prior to other brands. For example, tourbillon, the bird of Blancpain's twelve-day chain, is free, smart and beautiful, and is also called "the most beautiful tourbillon" by Master Zhong Yonglin.