
Montblanc Geosphere 0 Oxygen Mount Elbrouz LE 829
Montblanc has released the Geosphere 0 Oxygen Mount Elbrouz LE 829, a worldtimer watch incorporating volcanic ash from Mount Elbrus into its case construction. This limited edition features a unique dial with rotating globes representing the Seven Summits and a detailed laser engraving of Mount Elbrus on the case back.
- Limited to 829 pieces
- Price: €10,100
The mid-case is constructed from a proprietary composite material that includes volcanic ash, aluminized basalt fibers, calcium carbonate, and bio-sourced resin, giving it a marble-like appearance.
The watch features Montblanc's '0 Oxygen' technology, where the case is sealed in a nitrogen-filled, oxygen-free environment to prevent moisture and crystal fogging.
A bidirectional rotating compass bezel with a gray aluminum insert is included for navigation.
The MB 29.25 automatic movement operates at 4Hz (28,800 vph).
The dial displays world time via two rotating domed hemispheres, with continents in relief and a black line marking the Greenwich meridian; eight black dots identify the Seven Summits and Mont Blanc.
A sub-dial at 9 o'clock shows a second time zone, adjustable in one-hour increments.
The lume on the continents and second-time-zone hand glows blue, while the rest of the display lights up orange.
The case back is made of colored and laser-engraved titanium, depicting Mount Elbrus.