1858 Geosphere 0 Oxygen South Pole Exploration Limited Edition Automatic 42mm Interchangeable Titanium, Ceramic and Canvas Watch, Ref. No. 7612582367544

£6,458.40/ Approx. SAR 30,730(taxes and duties included)
A One size is equivalent to a One SizeOne Size
Editor's Notes

Montblanc's '1858 Geosphere 0 Oxygen' watch has a storied past. It was worn by world-record holding mountaineer Nimsdai Purja while scaling Mount Everest, all without supplemental oxygen, hence its namesake. Continuing that legacy, this 'South Pole Exploration' edition has a titanium case and blue glacier dial, representing both the Northern and Southern hemispheres and is complete with world-time complications. One of only 1990 pieces, it's uniquely devoid of oxygen to ensure its mechanical precision over time, however harsh the environment.

For warranty information, please refer to details & care

Details & Care


  • Swiss-made calibre MB 29.27 automatic movement with 46-hour power reserve
  • 33 jewels, 28,800 Vph


  • Hour and minute hands
  • Date window
  • Second time zone (GMT) subdial, 24-hour Northern and Southern hemisphere subdials with AM/PM indicators


  • Blue glacier dial
  • Super-LumiNova®-coated hour and minute hands, Arabic numerals and indices


  • Titanium case
  • Blue ceramic bi-directional rotating bezel
  • Crown for time and date adjustments and manual winding
  • Sapphire glass crystal
  • Patterned case back
  • Clasp-fastening stainless steel bracelet; additional grey canvas strap


  • Case diameter: 42mm; case thickness: 12.8mm; strap width: 22mm
  • Water resistance: 10 bar
  • Comes in a presentation box
  • Reference number: 7612582367544

We offer a two-year warranty for all working parts and manufacturing faults for luxury watches. For more information, contact one of our experts by emailing

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Product Code 1647597310484772

Returns or Exchanges

Try your purchase in the comfort of your own home and, if it’s not quite right, let us know and we’ll arrange a free collection from your home or office.