1858 Geosphere Limited Edition Automatic GMT 42mm Bronze and Leather Watch, Ref. No. 117840

A One size is equivalent to a One SizeOne Size
£4,928.18/ Approx. NT$186,004(taxes and duties included)
Sorry, this item is sold out. Add it to your Wish List so you don't miss out if it becomes available again
Editor's Notes

“Built for those who travel the world in their perpetual quest for exploration", Montblanc's '1858 Geosphere' watch is a limited-edition release to celebrate the 160th anniversary of the Minerva manufacture in Villeret, Switzerland, which Montblanc incorporated into its elite watchmaking division in 2007. Dedicated to mountaineers and the Seven Summits Challenge, it features 24-hour rotating Northern and Southern hemispheres at 12 and 6 o'clock, respectively, with each peak pinpointed in red, and is engraved with the ranges on the back. The hardy bronze case is set with a bidirectional ceramic bezel and it's affixed to a brown burnished-leather strap so it looks and feels like a vintage timepiece.

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

Technical Specification


  • Swiss-made calibre MB 29.25 automatic movement with 42-hour power reserve
  • 26 jewels, 28,000 Vph


  • Hour and minute hands, second time zone sub dial
  • Date window
  • 24-hour Northern and Southern hemisphere subdials with AM/PM indicators


  • Black dial
  • 18-karat red gold Super-LumiNova® hour and minute hands, beige Super-LumiNova® numerals, indices and second time zone hand


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


  • Case diameter: 42mm; case thickness: 12.8mm; lug width: 22mm
  • Water resistance: 10 bar
  • Comes in a presentation box
  • Reference number: 117840
  • Made in Switzerland
Product Code 16301891330605823

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.