The Montblanc 1858 Automatic Date 0 Oxygen The 8000 pays tribute to the world’s highest peaks and the alpinists who dare to climb them. The timepiece is housed in a 41mm stainless steel case totally devoid of oxygen and is powered by the automatic calibre MB 24.15. It comes with a fixed black ceramic bezel with the cardinal points, a dark grey Sfumato glacier patterned dial with orange accents, blue luminescence; a caseback featuring an engraving of the “Spirit of Exploration" and an interchangeable tapered stainless steel bracelet.