The Angelus U30 Tourbillon Rattrapante is a three dimensional and modern mechanical wrist watch that unites three coveted "haute horlogerie" complications: the tourbillon, fly-back double column wheel chronograph and split-seconds (rattrapante), while also boasting automatic winding with a power reserve display.
Angelus brand proudly carries a long tradition in innovative chronograph wristwatches: this history of manufacture chronographs for the wrist began in 1925 with a monopusher. The company's first highlight was the 1942 launch of the Chronodato, the world's first serially manufactured chronograph with calendar. Throughout subsequent decades, Angelus released ever more groundbreaking chronographs, many of them including world-first complications.
The visible column wheel for the split-seconds function is beautifully placed 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. 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.
Model: U30 Tourbillon Rattrapante
Features and Indications
Central hours and minutes, tourbillon, fly-back double column wheel chronograph, split-seconds
(rattrapante), power reserve indicator
Movement and Finishing
Calibre: A-150, mechanical self-winding tourbillon split-seconds chronograph
Complications: One-minute tourbillon, fly-back chronograph, split-seconds, power reserve indicator
Diameter: 37.60 mm
Height: 9.35 mm
Power reserve: 45 hours
Frequency: 4 Hz / 28,800 vph
Balance wheel: Black gold-treated copper-beryllium
Escapement: Swiss lever
Regulated: Set to 5 positions
Gear train: Wheels with exclusive Angelus six-spoke design to maximize rigidity
Screws: Angelus three-point design torque-optimizing heads
Main plate and automatic bridge: Grey NAC-treated to maximize contrast and depth
Upper bridges: Black ADLC-treated
Column wheels: Black ADLC-treated and mirror-polished. Both the split-seconds’ column wheel on the dial side and chronograph column wheel on the back are visible
Tourbillon cage: Hand-chamfered and hand-polished. Black ADLC-treated second pointer
Movement finishing: Chamfered and polished edges, flat surfaces either satin-finished or sandblasted
Rotor: Black ADLC-treated with solid 22-karat white gold segment
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, sandblasted 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
Material: Grade 5 titanium with black coating on the case band
Diameter: 47 mm
Thickness: 15 mm
Crown: Engraved with ANGELUS logo; 2 positions: 1. winding, 2. time-setting, split-seconds pusher integrated in the crown
Distance between lugs: 22 mm
Water resistance: 30 m / 100 ft / 3 atm
Crystals: Box sapphire crystal (front and back) with anti-reflective coating on the inside
Strap and buckle
Material: Black stealth alligator with titanium insert or rubber
Length range: 70 mm to 125 mm
Width: 22 / 20 mm
Buckle: Titanium, folding buckle engraved with Angelus logo
Limitation and reference number
Limited edition: 25 pieces
Reference number: 0CRAC.B01A.C003U
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