Originally a titanium case with a massive diameter of 44mm and a height of 17,1mm, Montblanc now launches the 1858 Geosphere 0 Oxygen LE1786, a new version of the watch with a bronze case that has been reduced to 42mm.
The automatic movement MB 29.27 with a power reserve of 42 hours, chronograph function and world time indication is still installed inside. On the dial - voluminous Northern and Southern hemispheres.
