This exceptional design with interchangeable bezel and bracelet gracefully combines the fine arts of watchmaking and of gem-jewellery design. A simple press causes the gold or platinum bezel to rotate by a quarter-turn to reveal a dazzling diamond, ruby, sapphire or emerald decor or - for further refinement - a row of baguette diamonds. A bayonet fixation device under one of the case horns allows the strap to be changed at will, choosing from a wide range of subtle shades. The precious-metal case holds an ultra-thin mechanical movement.