Greubel Forsey Invention Piece 1

A cutting edge and innovative white gold double tourbillon wristwatch with power reserve, with guarantee, number 7 of a limited edition of 11 pieces

Condition Report Sign Up or LoginIn 2004, Greubel Forsey released its first mechanical marvel, the Double Tourbillon 30° featuring a patented 30° inclined tourbillon carriage, which revolutionized high-end watchmaking. The tourbillon is set within another, and effectively compensates for gravity-related errors. The Invention Piece 1 is a homage to the original masterpiece and took 4 years to develop. The double tourbillon which is inclined at 30° is placed at the centre of a semi-circular hour and minute display. Time is indicated via two triangular indicators – a red one for the hours and a blue one for the minutes. Watching the different rotation of the different elements is mesmerizing, whereas the outer tourbillon cage takes four minutes to perform a complete rotation and the inner cage just 60 seconds, the double hands turn in 24 hours for the hours display and two hours for minutes. The case back features a very original engraving which sets Greubel Forsey’s philosophy on the watch and their watchmaking. The Invention Piece 1 was made in 11 pieces in platinum, 11 pieces in pink gold and 11 pieces in white gold like the present example in overall excellent condition.