Rolex Caliber 9001 Complete Guide

The Caliber 9001 is one of the most complicated movements ever developed and manufactured by Rolex.

The Rolex caliber 9001 was introduced in 2012 with the launch of the new Sky-Dweller model. The movement is packed with functions and complications. To make this possible, the caliber 9001 consists of a whopping 380 components. Like all Rolex watches, the Caliber 9001 is a self-winding movement.

The functions of the movement are selected using the clever bezel system which switches the movement into different modes. This allows the user to operate the different functions using the winding crown. Depending on the position of the bezel, you can set a date and month, local time, and reference time. Rolex calls it the ring command bezel, and this can be operated thanks to a module that consists of 60 parts, containing a barrel arbor mounted vertically in the housing. The ring command bezel has three positions it can lock into.

The Sky-Dweller is protected by 11 to 14 patents depending on the model, most of which relate to the caliber 9001.

Via the deep red rectangle in one of 12 windows around the dial, you can see the current month. This clever feature means that you do not have to think about adjusting the date at the end of a 30-day month.

The local time is indicated by the conventional center hour, minute, and seconds hands. The movement is developed in such a way that it allows the hour hand to be adjusted independently in one-hour increments both forwards and backward without the minute and seconds, nor the reference time in the second time zone affected.

A fixed inverted red triangle points to the wearer’s chosen reference time. The disc’s 24-hour display allows travelers to clearly distinguish daytime hours from night-time hours in the distant time zone (for example, 10 p.m. versus 10 a.m.).

”Furthermore, its innovative system for setting the functions, using the rotatable Ring Command bezel, is unique to Rolex. The Sky-Dweller represents sophistication at its highest grade.”

Rolex caliber 9001 functions and specifications

Movement: Mechanical movement. Self-winding (automatic).
Bidirectional perpetual rotor.
Frequency: 28.800 VPH/BPH
Jewels: 40
Power reserve: 72 hours.
Accuracy: -2/+2 Seconds per day
Certified Chronometer (COSC)
Paramagnetic blue Parachrom hairspring
Paraflex shock absorbers
Diameter: 33mm
24-hour display. Positioned on the off-center disc.
Ring Command bezel
Stop-seconds
Components: 380
Second-time zone
Quick-set date function. Instantaneous annual calendar at 3 o’clock
Centre hour, minute, and seconds hands.
Month display. Displayed with 12 apertures around the circumference of the dial.
Just like all of Rolex’s calibers, it is a certified chronometer, having passed the stringent test of the Official Chronometer Testing Institute (COSC).

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Rolex Caliber 9001 Complete Guide