Vaucher Manufacture Fleurier and CSEM launch a mechanical movement with an exceptional power-reserve of one month. A perfect partnership: the watchmaking skills of Vaucher Manufacture Fleurier (VMF) combined with the creativity of CSEM and its mastery of silicon technologies to produce an invention which drastically increases the power-reserve of the mechanical watch. Culmination of a project initiated seven years ago. Vaucher Manufacture Fleurier has drawn on all its watchmaking know-how to industrialize a revolutionary mechanism developed by CSEM to replace the traditional Swiss lever escapement. The movement is based on a very advanced technology and merits being proven on an industrial scale: the manufacture therefore plans to release the first movements within a three-year timescale.