Greubel Forsey Double Tourbillon 30° Technique 18k White Gold

More about Double Tourbillon 30° Technique 18k White Gold

This is an 18k white gold Greubel Forsey Double Tourbillon 30 Technique. It includes an 18k white gold case on a blue fabric and Velcro GF strap with a white gold slip ring and scratch resistant sapphire crystals. It has a signed pull out winding crown and an exhibition sapphire display crystal case back secured with 6 screws and it's engraved with "GREUBEL FORSEY – DOUBLE TOURBILLON 30," hallmarks and a serial number. The right and left side case band have engraved plates with Greubel Forsey production and manufacture philosophy in French. The 47.5mm diameter two-body skeletonized case, curved lugs, and stepped convex bezel, are polished/satin. The dial is completely open worked with a circular 30-degree inclined tourbillon cage at 6 o'clock that rotates once every four minutes while the smaller inner tourbillon makes a rotation every 60 seconds. There is a circular "Reserve de Marche" power reserve indicator at 3 o'clock, a round small constant running seconds dial with a red arrow indicator hand is at 9 o'clock, and it has open worked white gold hour and minute hands with large luminous arrow tips. There are small applied white gold baton hour indices and a large Arabic numeral is at the 12 o'clock position. It's water resistant to 30 meters/100 feet, it has a 120-hour power reserve at full winding, and the 16.8mm thick case, dial, and movement are all signed. This Greubel Forsey Double Tourbillon 30 Technique has a manual winding inclined double tourbillon Greubel Forsey caliber movement. The main plate and bridges are nickel silver (maillechort), and it includes 421 components, gold chatons, an anti-shock system, four fast and stacked co-axial mainspring barrels, a 10.70mm balance, a Phillips overcoil terminal curve, and the mechanism oscillates at a frequency of 21,600 vph (3Hz). The Greubel Forsey Double Tourbillon 30 Technique was introduced in white gold in 2021. The company produces c. 100 watches a year.

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