Mauron Musy Classic Steel Armure

Patented in 2012, the nO-Ring® waterproofing system developed by Mauron Musy is an authentic innovation in the watch industry. The brand drew inspiration from the sealing systems used in the field of precision mechanical engineering and applied to watchmaking. The various elements – watch glass and caseback – are clamped down by satellite springs, while the bezel and case middle act as a brace. The world-first result is devoid of any screws, glue or joints that require replacement during maintenance services. This device also makes it possible to operate the crown under water. The latest model to emerge from the Mauron Musy workshops, this Classic Steel Armure is therefore perfectly water-resistant to 100 metres. The distinctive construction of the imposing and sophisticated case means that watch maintenance involves just one movement service every seven years.