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.
SKU: GF_DOUBLE_TOURBILLON_TECHNIQUE_BLUE
Specifications
| CASE |
| 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 |
| STRAP |
| Material: Black rubber or hand-sewn alligator |
| Buckle: Titanium folding clasp, engraved with the GF logo |
| MOVEMENT |
| 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 |
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