The watch is a Tissot Couturier Automatic Chronograph. This model combines classic and elegant design, suitable for formal occasions, with the functionality of a sports chronograph. Mechanism: It works with a Swiss automatic (self-winding) mechanism, which is charged by the wearer's wrist. The calibers used can be ETA C01.211 or A05.H21 (based on Valjoux 7750), offering a power reserve of approximately 45 and 60 hours, respectively. Case and bracelet material: The case and bracelet are made of 316L stainless steel, known for its durability. Glass: It is equipped with a scratch-resistant sapphire crystal. Case diameter: It has an imposing diameter of 43 mm, with a thickness of approximately 15 mm. Water resistance: The watch is water-resistant to 10 bar (100 meters), suitable for swimming, but not for diving. Functions: Includes chronograph functions (with subdials for seconds, minutes, and hours) and a tachymeter scale around the edge of the dial for measuring speed. It also features a date window. Color: The dial is black, with silver indices and details.