Up Close with the Roger Dubuis Excalibur Quatuor, Regulated by Four Balance Wheels (Original Photos & Price) Replica Clearance

The movement within is the grade RD105SQ. For example, the skeletonized bridges have been NAC coated so they appear dark grey, and they are completed with circular-graining. The grade RD105SQ consists of 366 components. It defeats at 3Hz, and owners can expect an energy reserve of about 52 hours, which is very decent considering it’s just one mainspring forcing two fast-spinning tourbillons.Watches like these are usually divisive, but the colour scheme of this specific Roger Dubuis Excalibur Spider Double Flying Tourbillon is rather attractive to me. This specific variant of the Roger Dubuis Excalibur Spider Double Flying Tourbillon watch is limited to just 28 bits and the price is $267,000. That is not sufficient for an Aventador, but you may be able to get a Huracán if you go easy on the options.Roger Dubuis has been on a spree of material innovation lately. A few weeks ago, I looked at the Excalibur Carbon Spider Watch that had the very first movement to feature significant utilization of carbon – specifically, the motion plate, bridges, and tourbillon upper cage were done in carbon. We also got to go hands-on with this watch, the Roger Dubuis Excalibur Quatuor Cobalt MicroMelt that is the very first watch in the world to feature a case constructed entirely from something called cobalt chrome — a high-strength alloy that serves as a acceptable background for the watch’s impressive aerodynamic design balance.Roger Dubuis released the first Excalibur Quatuor model back in 2013, and they were already experimenting with substances on the watch, offering a acoustic version in a limited edition of 3 watches every priced at a staggering $1,000,000. The Roger Dubuis Excalibur Quatuor Cobalt MicroMelt does not get near that price. What was visually impressive then stays as such – check out the movie over the four balances in action.

Though not the only multi-escapement watch presented at SIHH 2013, the other was the Greubel Forsey Double Balancier 35°, the Roger Dubuis Excalibur Quatuor certainly takes the idea to much further. Even though this is not for everyone, the Quatuor demonstrates some much needed inventiveness at RD in the post-Carlos Dias era.

Inclined at 45 degrees to better compensate for the effects of gravity, the balance wheels work in pairs, thanks to the differentials linking each pair, to average out positional errors in rate.

And then the resulting rate from each pair of balance wheels is further averaged out between the two pairs. This double averaging leads to superior chronometric performance in all positions, according to RD. More is not necessarily better, but nevertheless the Quatuor is an intriguing watch. Movement aside, it is visually striking not only because of the four oscillating balance wheels, but thanks to its large 48 mm case. And the polished and notched bezel makes it look even larger than it is.

The cal. RD101 movement has a pleasing, symmetric layout, with a pair of elegantly shaped winding click springs.

Though not very evident due to the dark finish of the bridges and plate, the decoration is well done, especially the tightly but evenly spaced perlage. Like all RD calibres, this has the Geneva Seal.

Aside from the four balance wheels, the Quatuor also has an unusual power reserve. Both the hand and disc of the sub-dial turn, and working similarly to the Patek Philippe Nautilus ref. 3710. 88 pieces of the Quatuor will be made in rose gold, with a price of CHF380,000, or about USD407,000. Three more specimens of the Quatuor will be made, at the price of CHF1 million each.  The reason for the astronomical premium is the silicon case, which is a world first (and also an all expenses paid trip to the factory to pick up the watch). The rationale for using silicon as a case material, aside from sheer novelty, is a weak case at best – no pun intended. – SJX