Quick-release system for a watch bracelet

A quick release system for an interchangeable watch strap on a clasp, the quick release system comprising:

• an end link for securing the watch strap on the clasp, the end link comprising a body and two lateral end piece placed on each side of the body, a first lateral end piece being in one piece with the body and a second lateral end piece, called mobile end piece, able to slide away from the body,
• a first bar extending from the first lateral end piece, and comprising a first end being fixed to the first lateral end piece and a second free end cooperating with a bore of the mobile end piece;
• a second bar extending from the first lateral end piece, comprising a first end able to slide inside the first lateral end piece, and a second end articulated to the mobile end piece;
• a retaining stem arranged coaxial and fixed to the second bar, so that the mobile end piece is moveable parallel to a longitudinal axis of said retaining stem, and so that the mobile end piece can be moved from a locked position where the mobile end piece is held against the body, to an unlocked position where the mobile end piece is free,
• locking means to lock the mobile end piece on the body, said locking means comprising a push button sliding inside the mobile end piece, and a locking pin fixed to the body and cooperating with the push button to allow said mobile end piece to be locked to or to be unlocked from the body of the end link.