Like the Pepsi, the updated Batman uses the new time zone Caliber 3285. With the exception of the chronograph, all Rolex self-winding replica watches are powered by either the Caliber 31xx or the new Caliber 32xx, with a 70-hour power reserve instead of 48 hours. Unlike the 3186 caliber, the new movement has a ball-bearing rotor. The geometry of the pallet fork and escapement wheel has been optimized, and through the LIGA plating process, Rolex was able to create lighter-weight cut parts. The escapement is made of nickel-phosphorus alloy and is not affected by magnetic fields. 
The well-known features of Rolex movements remain unchanged: the extremely robust balance cock, the free spring with an overcoil made of paramagnetic niobium-zirconium alloy, and the fine regulator with Microstella weights on the balance wheel. The movement can be adjusted using a special tool without removing the movement from the case.
Rolex has improved the movement in terms of its core virtues of accuracy, longevity and robustness. The decoration includes a sunburst motif. Hand engraving is not present and does not have the desired effect. A small detail can easily identify the new movement on the dial: a small Rolex crown has been inserted between the words “Swiss Made”.
As is always the case with imitation Rolex, the official chronometer certificate from the COSC, the Swiss testing institute, confirms the high level of precision at all temperatures and positions. The company’s internal standards provide more stringent adjustments to the daily average between -2 and +2 seconds per day. On the chronograph, our tests expressed to these higher expectations, showing an average deviation of just -0.5 seconds.
Rolex hit the bull’s eye with the new version of the steel black and blue Rolex GMT-Master II. Although the design has undergone only minor changes over the past 60 years, the fake watch has become a classic, appealing for its timelessness rather than appearing dated. The Batman’s color is more reserved than the bright red of the Pepsi, and can easily be worn with a suit. the Jubilee strap matches the watch well. Rolex has also improved the technology with a new movement that offers the benefit of an extended power reserve.
In terms of functionality, Rolex offers more features than most other manufacturers – from bracelet extensions to its time zone adjustment. At the same time, accuracy, readability, and wearing comfort are all at the highest level.
