Swiss-Grade Caliber 4161 Clone Movement
The Rolex Yacht-Master II 116689 super clone runs on a Swiss-grade automatic movement engineered to match the genuine Rolex Caliber 4161 in feel, frequency, and autonomy. The Caliber 4161 is the in-house regatta chronograph movement Rolex built for the Yacht-Master II, and it drives the programmable countdown, the mechanical memory, and the Ring Command bezel interaction. The movement operates at 28,800 vibrations per hour, winds bidirectionally through a free-rotating rotor, and holds a power reserve of approximately 72 hours.
Accuracy and Regatta Performance
Daily deviation holds within -5 to +8 seconds per day after factory regulation, close to the chronometer standard of the genuine Caliber 4161. The countdown timer programs cleanly through the Ring Command bezel and resets to the stored duration through its mechanical memory. The 100-meter water resistance and the screw-down Triplock crown let the 116689 super clone hold its seal through sailing, swimming, and daily wear.
Spec grid:
Type:Automatic, self-winding regatta chronograph
Caliber:Swiss-grade Caliber 4161 clone
Frequency:28,800 vph (4 Hz)
Power Reserve:Approximately 72 hours
Winding:Automatic bidirectional
Functions:Hours, minutes, seconds, programmable 1–10 minute regatta countdown