Montblanc 1858 Geosphere Carbo₂ 0 Oxygen Limited Edition - 1969 Pieces


With this limited edition timepiece showcasing a design as strong as the innovation within, Montblanc pushes the concept of oxygen – the central element in any intrepid ascent – even further than before. The watch case material, the CARBO₂, is created using a pioneering process development that captures CO₂ from biogas production and mineral wastes from recycling factories. Reinforcing the theme of adventure, the 43.5 mm case totally devoid of oxygen comes with an engraved luminous blue outline of the Mont Blanc Mountain on the side while a 3D colored laser engraving of the Mont Blanc mountain adorns the titanium case back. The timepiece is powered by the MB 29.25 automatic movement with Montblanc’s Manufacture worldtime complication, which includes rotating Northern and Southern Hemisphere globes, a 24-hour scale, Day & Night indications, dual time display, and a date. Completing the timepiece is a black interchangeable rubber strap featuring a taper and a fine adjustment system, with the pattern reminiscent of the textiles used by mountaineers.


Movement type
Automatic movement Manufacture worldtime complication

Power Reserve
42,0 h

Frequency (VPH)
4 /h
28800,0 Hz 26 Jewels

A $15.00 shipping fee will be applied to all orders below $100. Shipping will be complimentary for orders above $100. A $25 shipping fee will be applied to all Expedited orders. Delivery costs will be charged by Montblanc, in addition to the price of the Montblanc products themselves. For certain promotional phases, complimentary shipping may be offered.

*Due to high volume during holiday period, shipping carriers may experience delays. We strive to ship your parcel on the day of your order, we are unable to guarantee the carrier’s timelines. We thank you for your patience.


All returns must be received within 14 days following the date the order was received. You may return your items in one of our boutiques located in Quebec, see Boutique Finder below. We do not cover the cost of sending back a return/exchange and original shipping paid cannot be refunded. All returns are subject to inspection and damaged or used items will not be refunded. Gift cards are non refundable.

All final sale items cannot be returned or exchanged. Should there be any issue with your item, please contact us at within 48 hours of delivery.

Learn more about our easy return policy here.

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