Ex­cal­ibur Qu­atuor (2013)

Adore Gems & Timepieces - - FEATURE -

The Geneva-seal stamped Ex­cal­ibur Qu­atuor shows off the fully in­te­grated man­u­fac­ture’s ex­per­tise in com­pli­ca­tions. It fea­tures a high­fre­quency 16Hz move­ment — the 590-part Cal­i­bre RD101 — that in­cor­po­rates four sprung bal­ances and five dif­fer­en­tials to tackle the chal­lenges pre­sented by grav­ity. As one of only a few brands that can man­u­fac­ture sprung bal­ances in-house, Roger Dubuis chose to in­clude four in the same move­ment in a world first. They work in pairs to in­stantly com­pen­sate for rate vari­a­tions caused by changes in a watch’s po­si­tion and add a com­pletely orig­i­nal power re­serve in­di­ca­tor. It was ac­tu­ally the brand’s dou­ble fly­ing tourbillon with a dif­fer­en­tial in­tro­duced in 2005 that laid the foun­da­tions of the seven-year re­search pro­gramme re­quired to pro­duce the Ex­cal­ibur Qu­atuor. Of­fered in a case made of sil­i­con, this is avail­able in a strictly lim­ited edi­tion of three pieces.

The world’s first sil­i­con watch with four sprung bal­ances

Price: CHF1 mil­lion

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