The passing of time has a tendency to impart clarity, but never to the degree presented by the new Greubel Forsey Double Tourbillon 30° Technique Sapphire. A variant of the watch that won the 2011 International Chronometry Competition in Le Locle, Switzerland, the latest edition gains further exclusivity with a case crafted entirely from a single piece of polished synthetic-sapphire crystal, including the lugs. Banding the circumference is a gold sight ring engraved with the core values of the manufacture and finished in lacquer.
Within the transparent timepiece, the three-dimensional architecture displays polished-gold hour and minute hands that trace over a sapphire ring, set with lacquered hour indices. A level below lies the small seconds subdial at 9 o’clock, counters for both the inner tourbillon (angled at 30 degrees and with a 60-second rate of rotation) and outer tourbillon (with 4-minute rotation) at 6 o’clock, and the 120-hour power reserve indicator positioned at 3 o’clock. A more revealing perspective of the movement is visible through the caseback. Only eight examples will be made, each priced at approximately $1.1 million. (greubelforsey.com)