Presented on the occasion of the 160th anniversary of Minerva,
the Montblanc 1858 Geosphere is a tribute to the heroes of
mountaineering. The world’s Seven Summits are indicated by
red dots on two rotating globes representing the two hemispheres.
Automatic, Caliber MB 29.25 with Manufacture complication
Second time zone, worldtime with northern hemisphere disc with day and night indication at 12 o'clock and southern hemisphere disc with day and night indication at 6 o'clock
Triple folding clasp
The watch is equipped by a new world-time complication
developed by Montblanc’s watchmakers at Villeret: two
globes turn in opposite directions and effect one complete
rotation in 24 hours. Encircling the two globes is a graduated
scale with the 24 time zones, which also indicates day/
night by means of contrasting colours. This complication provides
an instinctive way of reading the time zones. The use of
SuperLumiNova® on the continents improves the watch’s nighttime
visibility and performance.