Girard-Perregaux Tri-Axial Tourbillon Debuts at Baselworld 2014
Following up last year’s Constant Escapement, Girard-Perregaux flexes its horological muscles again at this year’s Baselworld with the introduction of the Girard-Perregaux Tri-Axial Tourbillon, a limited edition of 10 watches in rose-gold cases.
The Girard-Perregaux Tri-Axial Tourbillon is designed on three planes, rather than the traditional one plane, and uses a triple-cage tourbillon for which a domed lens needed to be integrated into sapphire crystal to provide the extra space. The regulation of the movement occurs on three separate axes: a traditional tourbillon at the center, making one rotation every 60 seconds; which is integrated into a structure on a second axis, rotating every 30 seconds; with both then inserted into another system, on yet a third axis, which makes one rotation every two minutes. The diameter of the entire mechanism is 13.78 mm and its total weight is 1.24 grams. The cage and drive systems are steel, the support pillars are titanium, and the balance has 16 gold adjustment micro-screws and beats at a swift frequency of 21,600 vph (3 Hz).
The movement, manual-winding Caliber GP09300, measures 36.10 mm in diameter and 16.83 mm in height. It contains 317 pieces and boasts an impressive power reserve of 52 hours. It features numerous components with
haute horlogerie hand-finishes that include mirror polishing, chamfered edges, and circular graining. The iconic shape of GP’s Three Bridges bridge is also represented.