The Exception to the round. Anticipate Exception. Waterman's first square writing instrument. An exception to the Round. Only by Waterman. With this series Waterman created a new flagship within the prestige range. The quadrangle writing instrument is seduced with luxury details. Indulge in the decadence of the bayonet mechanism when you refill your ink cartridge. The front section can be removed with one simple twist and then realigns to it's quadratic position with a satisfying click.