Crafted from hand-polished 316L (1.4404) surgical steel or red gold 750, the case consists of two parts as opposed to the conventional three. The advantage is enhanced leaktightness, an especially beneficial asset because the case is filled with argon, a noble gas that prevents the ingress of oxygen and thus prolongs the life of the lubricants. – The harmonious profile of the case reflects its function: There‘s a reason for every detail.