The Double Tourbillon 30° series, Greubel Forsey’s inaugural collection, not only features a revolutionary tourbillon core design, but subsequent models have also continued to innovate in case layout and display methods. Coupled with exquisite hand-finishing, its unique design permeates multiple dimensions, including the movement and exterior, as detailed below:
Patented Inclined Double-Body Tourbillon, Overcoming Gravity Errors
This is the series’ core design highlight, featuring a groundbreaking patented 30° double-body tourbillon structure. The inner frame, housing the balance wheel and hairspring, is tilted at 30° to the outer frame. The inner frame rotates once per minute, while the outer frame rotates once every four minutes. This combination of different rotation speeds and tilt angles effectively counteracts the timekeeping errors caused by gravity on the escapement and oscillator, significantly improving the watch’s accuracy in various everyday wearing postures. Even with a redesigned movement architecture and an inverted outer frame, the Double Tourbillon Asymétrique model retains this core tourbillon rotation characteristic. The new generation of Double Tourbillon 30° Technique models prominently features the double tourbillon cage at 6 o’clock, with a transparent design that allows the movement components to be clearly visible. exact replica watches
Case and Dial: An Aesthetic Breakthrough from Symmetry to Asymmetry
The series has undergone an innovative evolution in its exterior layout, moving from symmetry to asymmetry. The Double Tourbillon 30° Vision watch, launched in 2004, featured a symmetrical case and dial; while the subsequent Double Tourbillon Asymétrique model boldly adopted an asymmetrical case, with the 43.5 mm diameter case housing the movement off-center towards 8 o’clock, and a specially designed curved window allowing the wearer to appreciate the operation of the double tourbillon from a three-dimensional perspective. On the dial, the gold dial features concentric hour and minute rings, with polished gold hour markers enhancing its three-dimensional effect. The white gold version uses a contrasting combination of gray, charcoal gray, and black, while the red gold version uses black and charcoal gray, creating distinct layers. Both the hour and minute hands are coated with luminescent material, balancing aesthetics with easy readability at night.
Innovative Display Methods, Departing from Traditional Pointer Logic
Many watches in the series break away from traditional design in their functional displays. For example, the Double Tourbillon Asymétrique uses a unique rotating power reserve indicator at 2 o’clock, paired with a fixed small red triangle indicating the remaining power, distinguishing it from conventional pointer indications. The small seconds subdial at 6 o’clock is displayed with a striking red triangular hand, becoming one of the visual focal points of the dial. The new generation of Technique models also places the permanent seconds hand at 9 o’clock, again highlighted with a red hand, further enhancing the display’s legibility. Furthermore, the Invention Piece 1 model places the double tourbillon at the center of the semi-circular hour and minute display, while the off-center small seconds subdial and power reserve indicator are ingeniously designed, resembling a miniature solar system. greubel forsey replica
Exquisite hand-finishing craftsmanship, showcasing luxurious details.
This series of watches pushes the boundaries of hand-crafted watchmaking. Regarding the movement, a black-finished mainplate serves as the background for the tourbillon system, highlighting the three-dimensionality of the double tourbillon cage; the conical rotor is polished, and the stainless steel tourbillon bridge is finished with a flat black finish. Beneath the asymmetrical domed sapphire crystal on the case back, the gear system bridge is finished with nickel-palladium, brushed, and chamfered edges; all inner corners are hand-finished and secured with four blued steel screws, supporting a white gold bridge engraved with individual serial numbers and the brand name. Even components such as the domed oval bearing jewels in the gold chatons and the tiny safety screws are meticulously polished, showcasing top-tier handcrafted craftsmanship.
The collection is meticulously crafted, emphasizing both rarity and quality in its choice of materials and details. The Double Tourbillon Asymétrique features a case in either white gold or 5N red gold, with each model limited to only 11 pieces. The new Technique model combines 5N red gold with black diamond-like titanium, available in a limited edition of 22 pieces. All models come with hand-stitched alligator leather straps, and the clasps are made of the same white gold or red gold folding clasp as the case, maintaining a consistent style. Furthermore, each watch’s unique serial number is engraved on a small gold plate above the power reserve indicator, and some models feature a personalized message from the master watchmaker on the case back, making each timepiece highly collectible and distinctive. richard mille rm 58-01 world timer jean todt