7018 | TOUSSAINT A FINE STAINLESS STEEL KANAGAWA WAVE TOURBILLON MECHANICAL WRISTWATCH， CERTIFICATE OF ORIGIN AND PRESENTATION BOX
Signed and dated: --
Estimate: No Reserve
Final Price: RMB 15,000
Diameter 42mm， CIRCA2017
Condition Report Grade 1.5
Pocket watches were still the mainstay of society at the end of the 18th century. However， since pocket watches were placed in the lapel in the same position for a long period of time， the movement of the watch was gradually subjected to the influence of gravity， and the balance wheel would swing faster or slower depending on the position of the watch. In order to counteract the adverse effects of gravity on the movement， the tourbillon was invented so that the balance wheel could operate at a constant speed.
The first tourbillon was invented by Breguet in 1795 and patented in 1801， opening up new horizons for the development of watches. The principle of the tourbillon is quite simple: the watchmaker fixes the escapement (including the balance wheel， hairspring， lever， escapement wheel and other components most susceptible to gravity) in a frame and rotates it 360 degrees every minute. After Breguet’s invention of the tourbillon， A. Lange & Söhne， another top watchmaker， further advanced the tourbillon technology by developing the Flying Tourbillon， which is structured around the axis of the balance wheel and also rotates 360 degrees， but without the upper bracket bridge of the tourbillon assembly. The tourbillon assembly， which makes the tourbillon seem to float on the movement， earned it the nickname “flying tourbillon”.
Nowadays， the actual function of the tourbillon is not as important as it was at the beginning， but the technology is becoming more and more technical， and many watchmakers are offering two- and even multi-axis tourbillons that rotate not just 360 degrees， but in multiple angles， so that the entire tourbillon structure rotates on the dial like a three-dimensional planet. The tourbillon， along with the perpetual calendar and the minute repeater， are now among the three major watch complications. Poly Auction now presents to collectors a series of rare and valuable tourbillons， leading them to indulge in the complexities of centuries-old timepieces.
Lots with red titles are to be sold without reserve