Complex movements and chronometric precision have always been the specialty of Girard-Perregaux. The brand is one of the few that has its own in-house R&D division. In the mid-90s to achieve a greater accuracy they showcased Calibre 32A, the first high-frequency movement. It operated with 36,000 vibrations per hour in the Gyromatic HF. A recent development of the unit was the Girard-Perregaux Constant Escapement and last year in Basel they introduced the Tri-Axial Tourbillon.
This is again a further move for the Manufacture in its quest for chronometric perfection with a high-speed tourbillon on three separate axes.
It features a regulator on three separate axes; inside is a traditional tourbillon. Its cage performs one rotation in 60 seconds. Around this you can see a structure on a second axis, making a rotation in 30 seconds. These two pieces are in a third mechanism on a third axis and perform a rotation in 120 seconds. The manufacture uses different metals; the cage is steel, some pillars are titanium and the setting screws are pink gold – to have the right qualities for the right function. The whole system has 140 components and weights only 1.24g.
After the pink gold version, last week we admired the white gold one, available in a limited edition of 10 pieces. The 48mm case includes a domed sapphire crystal “bubble” on the dial at 9 o’clock and a window on the side making visible the mechanism from two sides.
The little tri-axial tourbillon almost looks like a tiny living creature. We are curious to see the next developments in Basel…
Photo credits: Girard-Perregaux, Loupiosity.com.
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