'This watch is the first. This is numbered 1 of the first wristwatch featuring fluid mechanics. Seven patents for technology and one for design, the H1 was made possible by Jean-François Mojon and Preciflex working specifically on movement and fluid operation. The fluid mechanics is made possible by two reservoirs at 6 o'clock. One of them compresses the liquid and the other makes it expand. As the hours go by, the liquid, quite amazingly and for the first time in watchmaking, advances and contracts.'