Greubel Forsey Double Tourbillon 30° Edition Historique
Greubel Forsey Double Tourbillon 30° Edition Historique Platinum
© Greubel Forsey
Greubel Forsey Double Tourbillon 30° Edition Historique Red Gold
© Greubel Forsey
Double Tourbillon 30° Edition Historique is a luxury wristwatch by Greubel Forsey.
See:
Greubel Forsey's first invention, presented in 2004, was an innovative double tourbillon mechanism (DT30), with one tourbillon – inclined at 30° and rotating in 60 seconds – inside another rotating every four minutes, to average out gravity-induced errors on the oscillator.
Reference:
- GF02j Edition Historique, 2010
Movement:
- Manual winding manufacture movement, 21,600 A/h
- Two tourbillons, the inner inclined 30°, with circulation time 1 minute, the outer with circulation time 4 minutes
- 39 jewels
- Olive-domed jewels in gold chatons
- 303 parts
- Power reserve 72 h
Case:
- Ø 44.5 mm, H 16.11 mm
- Sapphire crystal domed and transparent caseback
- Waterproof to 3 bar
Dial:
- Black, openworked
Functions:
- Hours, minutes, small seconds
- Power reserve indicator via circular arc
Limitation:
- 11 pieces in red gold, 11 pieces in platinum