Excalibur Quatuor, as the name suggests, is Roger Dubuis’ first watch with four balance springs, which has extraordinary significance in the history of fine watchmaking. The whole mechanism is like four musicians, and a movement performed in conjunction with five differentiators at the same time is a supreme challenge to gravity. As one of the most innovative watch factories in the 21st century-Roger Dubuis’s model of precision machinery, Excalibur Quatuor has once again surpassed the limit of precision, which is a breakthrough in modern watchmaking.
Excalibur Quatuor rose gold watch
Balance spring, the soul of mechanical watches As the core component of mechanical watches, it has always attracted much attention. This part controls the timing operation, which determines the precise performance. At present, there are only a few watch factories capable of manufacturing other parts of the movement themselves, and the self-made balance spring is even more valuable in the field of fine watchmaking. Roger Dubuis is one of the very few integrated watch factories capable of producing this key component completely autonomously. With this outstanding technology, the Geneva watchmaker ingeniously integrated four balance springs into the same movement, creating the RD101 movement, which overcomes the technical difficulties that have so far been considered insurmountable.
Two major innovations to improve timing accuracy
As a star product of the SIHH 2013 series, the limited edition of 88 Excalibur Quatuor watches is released, expressing Roger Dubuis’ passion, boldness and creativity. Adhering to the tradition of watchmaking, this unparalleled watch condenses many technological innovations. Not only is it equipped with four balance springs, the power reserve display mechanism is also refreshing. These two outstanding technologies (patent pending) are not developed for research and development, but a testament to the relentless pursuit of precision in watchmaking.
Due to the effect of gravity, as the wrist swings, the position of the watch changes continuously, which results in running errors. Although the tourbillon can partially solve this problem, Excalibur Quatuor offers a new solution. Excalibur Quatuor’s four balance springs work in pairs and are carefully laid out to instantly offset running errors caused by position changes. In other words, the one-minute offset of the gravity of the tourbillon, the Excalibur Quatuor can be offset instantly.
Stunning 16 Hz frequency
A traditional watch with a balance wheel with a frequency of 4 Hz can be regarded as a high-precision watch. The Excalibur Quatuor goes beyond the limit of high-frequency vibration of this watch. This watch with four balance springs has a vibration frequency of 16 hertz. 16 Hertz is about the basic movement, not just a function of the movement. It is a remarkable technical achievement.
The four sets of balance springs vibrate 4 times per second, which quadruples the frequency of the Excalibur Quatuor, because all balances do not oscillate at the same time. This design provides a new guarantee for precise timekeeping, replacing the ‘tick’ sound of traditional watches with a harmonious and gentle high-precision timing sound.
Novel and chic power reserve display
Excalibur Quatuor watches not only challenge the laws of gravity and high vibration frequencies, but also read the power reserve in a unique way. The crescent-shaped dual display runs in synchronism with the barrel, that is, 4 cycles per day, and the hands rotate at a relatively slower speed. As the power reserve is consumed, the hands move with the barrel, so that the power reserve is accurately displayed on the two crescent arcs. This innovative mechanism is full of creativity, precise and reliable, beautiful and intuitive. Patent pending, it is the perfect symbol of Roger Dubuis brand values.
3 + 2 = 5 groups of differentials = 7 years of research and development = double innovation
In 2005, Roger Dubuis shocked the industry with a floating tourbillon watch with a differential. Roger Dubuis Roger Dubuis has developed this Excalibur Quatuor with seven years of research and development. This masterpiece of timepieces brings together many extraordinary craftsmanship, not only integrating four balance wheels and novel power reserve display, but also equipped with five differentials. Three of them are connected to the balance wheel in the watch gear train, one on the central gear and the other two on the triple wheel, ensuring balance and achieving impeccable accuracy. The fourth differential guarantees the power reserve display, and the fifth connects the winding rod and two parallel barrels.
Extraordinary mechanical mechanism combined with powerful design
The Excalibur Quatuor watch is the creative work of Roger Dubuis, which transcends the classic qualities that have established the brand’s legend. From the first draft of the design to the attention of the 2013 SIHH Geneva Watch Fair, this watch masterpiece embodies all the craftsmanship of the watch factory. Watchmakers, engineers, and designers work hard at every design stage to achieve the perfect fusion of technology and design. Even trivial improvements are the result of careful and thorough consideration.
The production of 509 parts of RD101 movement also adheres to this criterion. The rigorous grasp of the design, production, adjustment and manual decoration of each component reflects the perfect combination of machinery and aesthetics.
The beautifully laid-out dial elegantly presents four balances with hairsprings, which make people fascinated by cutting-edge watchmaking technology. The bridges and splints are extremely streamlined, giving a modern interpretation of the ancient hollow-out process. Excalibur Quatuor’s exquisitely crafted finishes exude unique beauty and charm.
Chic in layout, bold in design, and powerful, this modern haute jewellery perfectly conveys Roger Dubuis’ freedom and avant-garde spirit. To highlight the stunning mechanical construction of the watch, the case design incorporates the classic elements of the Excalibur series: rounded arcs, grooved bezels, crown protection and a three-pointer lug-fixed strap.
Extreme quality is Roger Dubuis’s unswerving pursuit. The Excalibur Quatuor watch’s movement and the entire watch are engraved with the Geneva Seal, like all Roger Dubuis timepieces, which is unique in the fine watchmaking world.
Case: 48 mm, rose gold
Dial: Dark gray inner ring / transfer white minute dial / engraved Roger Dubuis mark and dark gray Geneva premium mark / rose gold power reserve display window / dark gray outer ring, round frosted / rose gold three-dimensional scale
Water resistance: 3 bar (30 m)
Strap: Hand-stitched brown alligator leather
Buckle: Rose gold adjustable folding buckle
Movement: manual winding mechanical movement, RD101
Limited edition: 88 pieces
Features: Manual-winding mechanical movement, 16¾ French cents, 113 gems, adjusted in five positions, rhodium-plated, beaded grain decoration / Geneva premium mark
Features: hours, minutes, power reserve display, 4 balance wheels, 5 differentials
Number of parts: 590
Thickness: 10.60 mm
Vibration frequency: 4 x 4 Hz (28,800 times / hour)
Power reserve: 40 hours