1858 Geosphere 0 Oxygen Limited Edition Automatic GMT 42mm Bronze, Ceramic and Leather Watch, Ref. No. 129415

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Editor's Notes

Nepal-born British mountaineer Nimsdai Purja set two new mountaineering world records at Mount Everest - he reached the summit without supplemental oxygen and while doing so wore this Montblanc limited-edition '1858 Geosphere 0 Oxygen' timepiece. Powered by a Swiss-made calibre MB 29.27 automatic movement, it's comprised of a polished bronze case and black ceramic bezel housing a signature blue glacier dial detailed with Geosphere Northern and Southern hemispheres. One of only 290 pieces, it's uniquely devoid of oxygen to ensure its precision over time, irrespective of how harsh the mountain environment may be.

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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


  • Bronze case
  • Black ceramic bi-directional rotating bezel
  • Crown for time and date adjustments and manual winding
  • Sapphire glass crystal
  • Engraved case back
  • Pin buckle-fastening blue leather strap (Calf)


  • Case diameter: 44mm; case thickness: 12.8mm; strap width: 22mm
  • Water resistance: 10 bar
  • Comes in a presentation box
  • Reference number: 129415
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Product Code 1647597283109095

Returns or Exchanges

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