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  • Design
  • Technical
  • Time zones

1858 Geosphere Limited Edition 1858

Montblanc 2018

ref. 117840
Men's

Mont Blanc is, as any geography student knows, the highest mountain in the Alps. To celebrate the 160th anniversary of its Minerva Haute Horlogerie Manufacture, part of Montblanc since its takeover by Richemont in 2006, the watch firm has dedicated this new model to the Seven Summits climb, the ultimate mountaineering challenge. The seven peaks are symbolised by as many red dots on the two domed hemisphere globes. Rotating once every 24 hours, one clockwise and one anti-clockwise, they indicate world times. The longitude reference meridian for both hemispheres is highlighted in luminescent white. There is also a second time zone display at 9 o'clock, together with a date window at 3 o'clock. Proposed in steel or as a limited edition in bronze.

Function

  • Function
    Hours, Minutes

Complications

  • Time zones GMT
    Multiple time zones
    World time
  • Display
    Day/night
  • Calendars
    Simple calendar

Movement

  • Movement name
    MB 29.25
  • Energy supply
    Self-winding
  • N° of jewels
    26
  • Power reserve
    42 hours
  • Vibrations
    28800
  • Form
    Round
  • Diameter
    mm

Case

  • Form
    Round
  • Material
    Bronze
  • Height/thickness
    12.80 mm
  • Diameter
    42.00 mm
  • Back
    Solid
  • Water-resistance
    100 m

Dial

  • Colour
    Black

Strap

  • Material
    Calfskin
  • Colour
    Brown
  • Fastening
    Pin buckle

Characteristics

  • Limited/numbered edition
    1858