1858 Geosphere 42 mm, stainless steel with black calfskin strap, self-winding caliber MB 29.25 with world time and second time zone display | Reference Number MB000044

The Montblanc 1858 Geosphere Ultra-Black Ref. 128257 reflects the design of the historic Minerva watches from the 1930s and characterized by the world time display and the two curved, rotating hemispheres, it is one of the most outstanding references of the 1858 collection. With its contrasting elements in black and white, it lives up to its name. The numerals and hands are coated with luminous mass and thus perfectly readable even in the dark. The 42-millimeter stainless steel case is water-resistant to 10 bar and houses self-winding manufacture caliber MB 29.25.