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Part of the Seven Summits collection, the Montblanc 1858 Geosphere Zero Oxygen Mount Elbrouz Limited Edition pays tribute to Europe’s highest peak. Inspired by Mount Elbrouz’s volcanic landscape, it features a distinctive case crafted from a proprietary composite incorporating volcanic ash, basalt fibers, and bio-sourced materials, complemented by exclusive mountain engravings and a glacier-patterned dial.

Powered by the MB 29.25 automatic movement, this world-timer is equipped with rotating Northern and Southern Hemisphere globes, dual time, day and night indications, and a date display. An interchangeable ivory and light brown rubber strap completes the expedition-inspired design. Limited to 829 pieces.


  • Product Number: 450020726426
  • Model Number: 136353
  • Collection: 1858
  • Subcollection: Iced Sea
  • Movement: Automatic
  • Dial Colour/Material: Grey
  • Case Size: 43.5
  • Case Material: Composite Titanium
  • Bracelet: Rubber
  • Complication: World Timer
  • Warranty: 2-year warranty
  • Case Thickness: 13 mm
  • Caseback: Engraved, Stainless Steel
  • Bezel: Bi-directional rotating
  • Watch Crystal: Domed scratch-resistant sapphire crystal with anti-reflective coating
  • Clasp: Folding clasp
  • Calibre: MB 29.25
  • Power Reserve: 42 hours
  • Water Resistance: 100 metres / 10 ATM
  • Functions: Hours, minutes, seconds, date, worldtimer, 24-hour scale and day/night indication, date by disc
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SHIPPING

Enjoy free standard shipping within Canada. To ensure the satisfaction of parcel reception, all our packages require signature upon delivery. The estimated delivery time is 2 to 5 days business days. For more information, click here.

RETURNS

All watches purchased on MaisonBirks.com can only be returned or exchanged by mail within 30 days of delivery, provided merchandise has not been worn, altered, engraved, or special-ordered. All claims, returns, battery replacement, or warranty service must be accompanied by proof of purchase, original packaging and warranty materials. All returns are subject to a quality inspection to ensure the merchandise meets our return policy criteria. All merchandise purchased with cryptocurrency is final sale. If a prepaid shipping label was not received with your order, please contact Client Services Team at +1 (855) 873-7373 or +1 (833) 613-2600 or send an email to info@birks.com. For more information, click here.

Montblanc

Montblanc 1858 Geosphere 0 Oxygen Mount Elbrouz Automatic 44 mm Composite - Limited Edition

1858 Geosphere 0 Oxygen Mount Elbrouz Automatic 44 mm Composite - Limited Edition
Estimated Price:
$ 14,000
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*This item is on order. This ring will be crafted just for you.
Contact an expert to confirm the delivery timeline.

All images shown are for illustration purposes only. Actual product may vary. Birks reserves the right to change the font, size and text orientation depending on the engraving message for best result.

Please note the estimated time for our engraving services is 7 to 10 business days. Engraved items are final sale.

Once adjusted Tudor watches are final sale.

Note that in store (after sale) adjustments to your Tudor watch is available exclusively in Official Tudor Maison Birks locations.

Part of the Seven Summits collection, the Montblanc 1858 Geosphere Zero Oxygen Mount Elbrouz Limited Edition pays tribute to Europe’s highest peak. Inspired by Mount Elbrouz’s volcanic landscape, it features a distinctive case crafted from a proprietary composite incorporating volcanic ash, basalt fibers, and bio-sourced materials, complemented by exclusive mountain engravings and a glacier-patterned dial.

Powered by the MB 29.25 automatic movement, this world-timer is equipped with rotating Northern and Southern Hemisphere globes, dual time, day and night indications, and a date display. An interchangeable ivory and light brown rubber strap completes the expedition-inspired design. Limited to 829 pieces.


  • Product Number: 450020726426
  • Model Number: 136353
  • Collection: 1858
  • Subcollection: Iced Sea
  • Movement: Automatic
  • Dial Colour/Material: Grey
  • Case Size: 43.5
  • Case Material: Composite Titanium
  • Bracelet: Rubber
  • Complication: World Timer
  • Warranty: 2-year warranty
  • Case Thickness: 13 mm
  • Caseback: Engraved, Stainless Steel
  • Bezel: Bi-directional rotating
  • Watch Crystal: Domed scratch-resistant sapphire crystal with anti-reflective coating
  • Clasp: Folding clasp
  • Calibre: MB 29.25
  • Power Reserve: 42 hours
  • Water Resistance: 100 metres / 10 ATM
  • Functions: Hours, minutes, seconds, date, worldtimer, 24-hour scale and day/night indication, date by disc
View More Details
View Fewer Details

SHIPPING

Enjoy free standard shipping within Canada. To ensure the satisfaction of parcel reception, all our packages require signature upon delivery. The estimated delivery time is 2 to 5 days business days. For more information, click here.

RETURNS

All watches purchased on MaisonBirks.com can only be returned or exchanged by mail within 30 days of delivery, provided merchandise has not been worn, altered, engraved, or special-ordered. All claims, returns, battery replacement, or warranty service must be accompanied by proof of purchase, original packaging and warranty materials. All returns are subject to a quality inspection to ensure the merchandise meets our return policy criteria. All merchandise purchased with cryptocurrency is final sale. If a prepaid shipping label was not received with your order, please contact Client Services Team at +1 (855) 873-7373 or +1 (833) 613-2600 or send an email to info@birks.com. For more information, click here.

Part of the Seven Summits collection, the Montblanc 1858 Geosphere Zero Oxygen Mount Elbrouz Limited Edition pays tribute to Europe’s highest peak. Inspired by Mount Elbrouz’s volcanic landscape, it features a distinctive case crafted from a proprietary composite incorporating volcanic ash, basalt fibers, and bio-sourced materials, complemented by exclusive mountain engravings and a glacier-patterned dial.

Powered by the MB 29.25 automatic movement, this world-timer is equipped with rotating Northern and Southern Hemisphere globes, dual time, day and night indications, and a date display. An interchangeable ivory and light brown rubber strap completes the expedition-inspired design. Limited to 829 pieces.


  • Product Number: 450020726426
  • Model Number: 136353
  • Collection: 1858
  • Subcollection: Iced Sea
  • Movement: Automatic
  • Dial Colour/Material: Grey
  • Case Size: 43.5
  • Case Material: Composite Titanium
  • Bracelet: Rubber
  • Complication: World Timer
  • Warranty: 2-year warranty
  • Case Thickness: 13 mm
  • Caseback: Engraved, Stainless Steel
  • Bezel: Bi-directional rotating
  • Watch Crystal: Domed scratch-resistant sapphire crystal with anti-reflective coating
  • Clasp: Folding clasp
  • Calibre: MB 29.25
  • Power Reserve: 42 hours
  • Water Resistance: 100 metres / 10 ATM
  • Functions: Hours, minutes, seconds, date, worldtimer, 24-hour scale and day/night indication, date by disc
View More Details
View Fewer Details

SHIPPING

Enjoy free standard shipping within Canada. To ensure the satisfaction of parcel reception, all our packages require signature upon delivery. The estimated delivery time is 2 to 5 days business days. For more information, click here.

RETURNS

All watches purchased on MaisonBirks.com can only be returned or exchanged by mail within 30 days of delivery, provided merchandise has not been worn, altered, engraved, or special-ordered. All claims, returns, battery replacement, or warranty service must be accompanied by proof of purchase, original packaging and warranty materials. All returns are subject to a quality inspection to ensure the merchandise meets our return policy criteria. All merchandise purchased with cryptocurrency is final sale. If a prepaid shipping label was not received with your order, please contact Client Services Team at +1 (855) 873-7373 or +1 (833) 613-2600 or send an email to info@birks.com. For more information, click here.

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