The U30 Black titanium features a one-minute tourbillon, a fly-back double column wheel chronograph, a split-seconds (rattrapante), a self-winding mechanism and a power reserve indicator.
However technically complicated that combination is, it is the movement's contemporary architecture and three-dimensional design that make the Angelus Tourbillon Rattrapante truly unique.
Angelus U30 Black Titanium
The one-of-a-kind mean machine
Offered up on the altar of the grande complication, the U30 is a piece like no
other. Ultra-light and ultra-sporty, the incredible Angelus design unites a variety
of prestigious complications: a tourbillon, flyback and split-second chronograph.
The 47mm black DLC titanium case with openworked edges houses one of the
most complex automatic skeletonized movements in the world. In the U30,
nothing has been sacrificed in the expression of Angelus’ extreme watchmaking approach.
The U30 is also a beast in a figurative sense. It is a mythical creature, a mean machine:
an exceptional piece both in performance and design. The spacious skeletonized
structure encompasses the case, movement and hands. The case, 47mm in diameter
and 15mm thick, is made of black DLC titanium. The lugs and case middle are marked in
the centre with a recess that extends the skeletizing of the movement. The openworked
movement has 350 components in total, is treated with black DLC and accentuated
in grey. The design is an expression of Angelus’ own brand of hyper-technicality; it is
the supreme sportiness of an ultra-light split-second chronograph. One-of-a-kind
A tour of the open dial begins with skeletonized central hour and minute hands. High legibility is ensured by high-contrast black movement bridges underneath light-colored hour and minute hands, as well as the fact that the latter have slightly curved profiles to catch the light from any angle.
The U30 Tourbillon Rattrapante
The one-minute tourbillon occupies a quarter of the dial space and can be appreciated through the skeletonized movement plate and bridges at 10 o'clock. The tourbillon is high-beat with 4 Hz / 28,800 vph, a perfect fit for the watch’s character. The tourbillon cage is entirely made of non-magnetic material and reduced to the maximum to further minimize mass and optimize performance. Not only can the tourbillon itself be fully admired dial side, but also all its gearing, creating an intriguing micro-mechanical display.
The power reserve indicator, with visible gears and wheels, is positioned at 8 o'clock directly integrated onto the skeletonized bridge: a green sector indicates ideal torque while red highlights that it's time to wind the watch. The chronograph function of the U30 Tourbillon Rattrapante is among the most refined and complicated in existence: the split-seconds or “double” chronograph.
This type of chronograph is highly complex to achieve, especially when combined with a tourbillon, as the energy consumption of a rattrapante mechanism is very high.
The rattrapante (or split-seconds) function allows the timing of different events that begin but do not end together, for example the times of two runners. Two separate chronograph second hands are set one over the other; the one underneath is the split-seconds hand.
When the chronograph is started, both hands start moving in lockstep together, until a press of the pusher in the crown "splits" them, with the top hand continuing and the bottom split-seconds hand stopping to allow an intermediate time to be noted. By again pressing the pusher, the split-seconds hand will instantly catch up to the main chronograph hand, ready again to record a new intermediate time. Integrated onto the bridge at 3 o'clock, a 30-minute counter completes the chronograph functions.
Fans of horology are sure to appreciate the visible column wheel for the split-seconds function at 4 o'clock, positioned just below the 30-minute counter. The observer can even watch it in operation when the split-seconds function is activated.
Angelus’ U30 Tourbillon Rattrapante is first of all a "fly-back" chronograph, which means that the timing operation can be directly reset and restart without having to be stopped first.
The U30 Tourbillon Rattrapante in-depth
A second column wheel on the back of the movement controls the chronograph. Whereas the majority of chronographs operate in the sequence push-to-start, push-to-stop, and push-to-reset, Angelus’ U30 Tourbillon Rattrapante is first of all a "fly-back" chronograph, which means that the timing operation can be directly reset and restart without having to be stopped first.
The fly-back function is very useful as it allows instant restarting of the chronograph with one push of the button instead of the three pushes necessary for standard chronographs. The fly-back function is especially complicated to achieve when combined with the split-seconds complication as the fly-back mechanism has not only one, but two, central chronograph hands to reset and restart.
In addition, the forces generated on the split-seconds mechanism during the instantaneous reset and restart are significant. Therefore, all of the different chronograph functions have to be painstakingly set and optimized by the master watchmaker during assembly in order to guarantee smooth operation of all functions.
|Limited edition:||5 pieces|
Hours and minutes, tourbillon, 30-minute flyback and split-second chronograph, power reserve indicator
Angelus A-150, mechanical self-winding tourbillon split-seconds chronograph
|Power reserve:||45 h|
|Frequency:||28,800 vph / 4 Hz|
|Movement finishing:||Platinum : NAC anthracite coated / Bridges : black ADLC-coated|
|Tourbillon cage:||Hand-chamfered and hand-polished. Black ADLC-treated second pointer|
|Material:||Grade 5 black DLC coated titanium|
|Height:||15.00 mm including sapphire crystals|
|Crystals:||Box sapphire Crystal with anti-reflective coating on Inside surface|
|Chapter ring:||Hours, minutes and chronograph seconds markers|
|Counters:||30-minute counter laser engraved onto the upper chronograph bridge and rhodium treated. Power reserve indicator laser engraved onto the power reserve bridge, rhodium treated and filled with green and red lacquer|
|Hands:||Skeletonized, sand-blasted with polished top hour and minute hands, sand-blasted chronograph second hand with red tip, satin-finished split-seconds hand, sand-blasted with polished top power reserve hand, polished 30-minute counter hand with red line|
|Buckle:||Deployant, grade 5 titanium|