Swiss-Grade Caliber 4131 Clone Movement
The Rolex Daytona 126529LN super clone runs on a Swiss-grade automatic chronograph movement engineered to reproduce the genuine Rolex Caliber 4131 in feel, frequency, and autonomy. The movement operates at 28,800 vibrations per hour, winds bidirectionally through a free-rotating rotor, and holds a 72-hour power reserve for a full weekend off the wrist. The open caseback shows the rotor and the bridge finishing of this Caliber 4131 clone.
Accuracy and Chronograph Performance
Daily deviation holds within -5 to +8 seconds per day after factory regulation, close to the chronometer standard of the genuine Caliber 4131. The central chronograph seconds hand starts, stops, and resets cleanly through the screw-down pushers. The smooth sweeping motion and the quiet rotor confirm the Swiss-grade build of the 126529LN Super Clone.
Spec grid:
TypeAutomatic chronograph
Frequency28,800 vph (4 Hz)
Power Reserve72 hours
Jewels44
WindingAutomatic bidirectional
FunctionsChronograph, small seconds, 30-minute and 12-hour counters