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  • Design
  • Technical
  • Tourbillon
  • Time zones
  • Non-classified

GMT Earth

Greubel Forsey 2018

Men's

When in 2011 Greubel Forsey unveiled its GMT, it made watchmaking history with the first ever three-dimensional terrestrial globe. Making one complete rotation in 24 hours, this Earth was secured at its base, which obscured the view of the South Pole. This "shortcoming" has now been given a solution to allow a 360° view of our planet inside a case whose form has been adapted to accommodate this seemingly free-floating globe. Thus clearly visible from both sides of the watch, it enables an intuitive reading of world times, complemented by the 24 cities with winter and summer times on the movement side. In addition to hours, minutes, small seconds and a power-reserve indication, this GMT Earth materialises a second time zone by a triangular red hand at 10 o'clock. An inclined Tourbillon 24 Secondes, Greubel Forsey's third pivotal Invention, completes the picture.

Function

  • Function
    Hours, Minutes, Small seconds

Complications

  • Time zones GMT
    Multiple time zones
    Summer time / winter time
    World time
  • Display
    Power-reserve indicator
    Day/night
  • Regulating mechanism
    Inclined tourbillon
  • Other complication
    See presentation text

Movement

  • Energy supply
    Manual-winding
  • N° of components
    453
  • N° of jewels
    60
  • Power reserve
    72 hours
  • Vibrations
    21600
  • Form
    Round
  • Height/thickness
    11.55 mm
  • Diameter
    36.40 mm

Case

  • Form
    Round
  • Material
    White gold
  • Height/thickness
    18.00 mm
  • Diameter
    45.50 mm
  • Back
    Sapphire
  • Water-resistance
    30 m

Dial

  • Material
    Openworked / sapphire

Strap

  • Material
    Alligator
  • Colour
    Black
  • Fastening
    Folding clasp

Characteristics

  • Limited/numbered edition
    33