====== Greubel Forsey Invention Piece 3 ======
{{wst>image_cr|Greubel Forsey|Invention Piece 3 GF01n WG|Greubel Forsey Invention Piece 3 White Gold|270px}}

{{wst>image_cr|Greubel Forsey|Invention Piece 3 GF01n PL|Greubel Forsey Invention Piece 3 Platinum|270px}}

{{wst>image_cr|Greubel Forsey|Invention Piece 3 GF01n|Greubel Forsey Invention Piece 3 Red Gold|270px}}

**Greubel Forsey Invention Piece 3** is a luxury wristwatch by [[Greubel Forsey]].

//Invention Piece 3// pays homage to Greubel Forsey's third invention with a fast-rotating 24-second [[tourbillon]] inclined at 25°. The time display features a large 24-hour dial outside concentric minutes and a small seconds dial at 5 o'clock. An off-centred power reserve indicator at 2 o'clock visually balances the tourbillon at 8 o'clock, which is also visible through the lateral window. Enhanced through a magnifying glass, extracts of a message from the inventors describing their creation and their philosophy is very finely engraved on four gold plates. The complete message can be viewed through the display back where it is engraved on a crescent-shaped plate.

//Text by GF//

Invention Piece 1 was presented first in [[2009]].


<WRAP ud ud_mod>

**Reference:**
  * GF01n

**Movement:**
  * [[Manual winding]] [[manufacture movement]] calibre GF 01N, 21,600 A/h
  * [[Tourbillon]]
  * [[Double barrel]]
  * 42 [[jewels]]
  * 370 components
  * [[Power reserve]] 72 h

**Case:**
  * [[Red gold]], [[white gold]] or [[platinum]]
  * Ø 43.5 mm, H 16,11 mm
  * [[Domed]] [[sapphire crystal]] and transparent caseback
  * Lateral sighting window with curved [[sapphire crystal]]
  * Relief engraving history of "Invention" on hand-hammered background
  * [[Waterproof]] to 3 atm

**Dial:**
  * Silver

**Functions:**
  * Hour (red triangle), minute (blue triangle), [[small seconds]]
  * Sectoral [[power reserve indicator]]

**Bracelet:**
  * Black hand-sewn Alligator strap with [[folding clasp]]

**:**
  * Single edition, 11 pieces each version
</WRAP>
===== Video =====
  * [[Greubel Forsey Invention Piece 3 Video]]


{{tag>Watch_models Watches_with_tourbillon Greubel_Forsey_models}}