Marking a new chapter in Angelus’ Urban Collection of cutting-edge watchmaking, the U21 and U22 Tourbillon revisit the singular movement and streamlined design focused on structural optimization with two new executions: the U21 and U22.
From the movement to the case design, the objective from the get-go has been to showcase the splendor of the movement’s architecture and tourbillon while reducing as much weight as possible. For this purpose, the U21 and U22 Tourbillon feature a carbon fiber main plate, giving the impression of being a part of the case.
The U21 Tourbillon interprets the uniquely structured movement in a noble metal case, combing the bezel-less carbon fiber central case element with polished and satin-brushed 18-karat red gold lugs, enhancing its visual appeal. The skeletonized bridges are solid 18-karat red gold for additional harmony between the case and movement. To further enhance legibility, the hands are filled with white SuperLumiNova.
The U22 Tourbillon on the other hand features a carbon fiber and titanium case like the original U20, however with an even greater emphasis on weight reduction. Thanks to its carbon fiber main plate, the U22 Tourbillon weighs a mere 54 grams in total. The flange ring has also been revisited, set with satin-finished applied indexes for the hour markers. The central hands offer a racy look thanks to the red SuperLumiNova.
The goal with these U21 and U22 Tourbillon is to present the essence of the movement by removing any superfluous material. What seems to look deceptively simple to achieve requires great artistic vision and engineering prowess. The more material that is removed, the more the structure of the movement has to be carefully calculated to ensure rigidity and sturdiness for a maximum precision.
The tourbillon even goes a step further. It does not boast an ordinary movement that has been skeletonized afterwards, but a tourbillon movement that has been created from scratch to be as open, three-dimensional and resplendent as possible. The discerning eye will be pleased to discover that haute horlogerie has not been sacrificed on the altar of minimal mass: components have been hand-chamfered, hand-polished and hand satin-finished to ensure that they look as good as they are filigree.
And to further increase visibility into the top of the three-dimensional movement, both models features a unique design element. The case is fashioned without a bezel and instead uses a sapphire crystal dome, which also allows a sideways view onto the movement.
The U21 and U22 Tourbillon deserve closer inspection, which reveals many of the well- thought-out details that go into creating a contemporary, cutting-edge skeleton watch: the variable inertia balance wheel of the tourbillon is especially designed and crafted to minimize air friction; the patterned carbon fiber used in the main plate is offers maximum rigidity; ruby bearings are set into solid gold chatons. The ultra-light case, entirely made of carbon fiber, red gold or titanium and sapphire, has been designed to echo the three-dimensional aspect and the technical feel of the timepiece.