====== Greubel Forsey Signature 1 ======

{{wst>image_cr|Greubel Forsey|Signature 1 Red Gold|320px}}
{{wst>image_cr|Greubel Forsey|Signature 1|280px}}
{{wst>image_cr|Greubel Forsey|Signature 1 Steel|280px}}
{{wst>image_cr|Greubel Forsey|Signature 1 Steel Blue|280px}}

The **Signature 1** is a luxury wristwatch by [[Greubel Forsey]].

This watch was created in collaboration with Didier J. G. Cretin and launched [[2016]]. It shows the balance clearly visible in an opening of the dial.

The appearance of this model is an example of a new approach of Greubel Forsey with simple, straightforward timepieces.

<WRAP ud ud_mod>
**Reference:**
  * GFS1
  * Signature 1 Steel
  * Signature 1 Steel Blue
  * Signature 1 Red Gold
  * Signature 1 White Gold
  * Signature 1 Platinum

**Movement:**
  * [[Manual winding]] [[manufacture movement]], 18.000 A/h
  * Balance spring with [[Phillips terminal curve]], Geneva-style stud
  * Main plate: [[Nickel silver]], frosted and spotted, straight-grained flanks, polished [[bevelling]] and countersinks, large polished inclined facets, black [[PVD]] treatment
  * Bridges: Nickel silver, [[Côtes de Genève]], frosted and spotted, with straight-grained flanks, polished bevelling and countersinks, large polished inclined facets, nickel-[[palladium]] treatment
  * Flat black polished steel barrel bridge, hand-polished bevelling and countersinks
  * 21 [[jewels]]
  * Olived-domed [[jewels]] in gold [[chaton]]s
  * 190 components
  * [[Power reserve]] 54 h

**Case:**
  * [[White gold]] / [[Red gold]] / [[Platinum]] / [[Stainless steel]]
  * Ø 41.4 mm, H 11.7 mm
  * Convex [[sapphire crystal]], caseback with [[sapphire crystal]]	 
  * [[Waterproof]] to 3 atm

**Dial:**
  * Gold versions: Rhodium-coloured gold, black hour-ring and minute-circle, polished bevel
  * Platinum version: black-anthracite gold dial, white hour-ring and minute-circle, polished bevel
  * Small seconds in rhodium-coloured gold, polished bevel
  * Hours, minutes and small seconds hands in polished steel, blued according to the version, hand-polished countersink

**Functions:**
  * Hours, minutes, [[small seconds]]

**Bracelet:**
  * Hand-sewn alligator leather strap with [[pin buckle]]

**Limited edition:**
  * 11 pieces in white gold, 11 pieces in red gold, 11 pieces in platinum and 33 pieces in steel
</WRAP>

{{tag>Watch_models Greubel_Forsey_models}}