Double Tourbillon 30° Technique Blue

Inside a cage which rotates in four minutes, an interior cage containing the balance wheel is inclined at a 30 degree angle relative to the first cage, which rotates in sixty seconds. The combination of the 30° inclination with the different rotational speeds of the two tourbillion cages improves timekeeping by averaging out positional errors due to gravity in all usual wristwatch positions, and especially in static positions.

Material: Titanium, Platinum or White Gold
Diameter: 47.50mm
Case Back: Sapphire Crystal
Dial: Multi-level synthetic sapphire hour-ring, galvanic growth hour indexes, engraved and lacquered inner tourbillon rotation indicator
Water Resistance: 30m
Material: Black rubber or hand-sewn alligator
Buckle: Titanium folding clasp, engraved with the GF logo
Calibre No: -
Mechanism: Hand Wound Mechanical
Total Diameter: 38.40mm
Height: 12.15mm
Frequency: 21’600 Vib/h (3Hz)
Number of Parts: 528
Number of Jewels: 43
Power Reserve: 120h
Functions: Hours, Minutes, Small Seconds, 120h Power Reserve, 240s Outer Tourbillon, 60s Inner Tourbillon