The Angelus U30 Tourbillon Rattrapante Chronograph Skeleton Watch

 The power reserve indicator, with visible gears and wheels, is located at 8 o'clock and is integrated directly on the skeletonized bridge: a green sector indicates ideal torque, while red indicates it is time to wind the replica watch.


The chronograph function of the U30 Tourbillon Rattrapante is one of the most sophisticated and complicated in existence: the split-seconds or "double" chronograph. This type of chronograph is very complex to realize, especially in combination with a tourbillon, because the energy consumption of a rattrapante mechanism is very high.

While most chronographs operate in the order of push-to-start, push-to-stop, and push-to-reset, Angelus' U30 Tourbillon Rattrapante is primarily a fly-back chronograph, meaning the timing operation can be instantly reset and restarted without having to be stopped first. The fly-back function is very useful because it allows the chronograph to be restarted instantly with the push of a button instead of the three presses required for standard chronographs.
Two separate chronograph second hands are placed one above the other; the one underneath is the split second hand. Integrated on the bridge at 3 o'clock, a 30-minute counter completes the chronograph functions. The rattrapante (or split-seconds) function allows the timing of different events that start but do not end together, for example, the times of two runners. By pressing the button again, the split-second hand will immediately catch up with the chronograph hand, ready to take a new split time. When the chronograph is started, both hands in lockstep begin to move against each other until a push of the push-button in the crown splits them, with the top hand continuing and the bottom second hand stopping to record an intermediate time.
The observer can even copy the Angelus U30 while in operation when the split-seconds function is activated. A second column wheel on the back of the timepiece operates the chronograph. The visible column wheel for the split-seconds function is beautifully placed at 4 o'clock, just below the 30-minute counter.
Hence, all the different chronograph functions must be meticulously set and optimized by the master watches replica during assembly to ensure the smooth operation of all functions. In addition, the forces generated on the split-seconds mechanism during the instant reset and restart are significant. The fly-back function is particularly complicated to achieve in conjunction with the split-seconds complication as the fly-back mechanism has not just one, but two. , central chronograph hands to reset and restart.
Technical details
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
Caliber: A-150 mechanical self-winding tourbillon split-seconds chronograph
Complications: One-minute tourbillon, fly-back chronograph, split seconds, power reserve indicator
Jewels: 38
Diameter: 37.60 mm
Height: 9.35 mm
Power reserve: 45 hours
Frequency: 4 Hz / 28,800 ph
Handwheel: Black gold treated copper beryllium
Escapement: Swiss lever
Regulated: set to 5 positions
Gearing: Wheels with exclusive Angelus design with six spokes for maximum rigidity
Propellers: Angelus three-point design torque-optimizing heads
The main plate and auto bridge: Gray NAC treated to maximize contrast and depth
Top Bridges: Black ADLC Treated
Column wheels: black ADLC-treated and mirror-polished. Both the second column wheel in the dial and the chronograph column wheel on the back are visible
Tourbillon cage: Hand beveled and hand polished. Black ADLC treated second hand
Movement finishing: beveled and polished edges, flat surfaces satin or sandblasted
Rotor: Black ADLC treated with solid 22K white gold segment
Choose。
Chapter ring: Hour, minute, and second markers of the chronograph
Counters: 30 minute counter laser engraved on the top chronograph bridge and rhodium plated. Power reserve indicator laser engraved on the power reserve bridge, rhodium-plated and filled with green and red lacquer
Hands: Skeletonized, sandblasted with the polished top hour and minute hands, sandblasted chronograph second hand with red tip, satin split second hand, sandblasted with polished top power reserve hand, polished 30-minute counter with the red line. Replica Rolex Deepsea's best designer watches.

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