Like the Pepsi, the updated Batman also features the new time zone Caliber 3285 movement. With the exception of the chronograph, all Rolex self-winding watches are powered by either the 31xx movement or the new 32xx movement, which has a power reserve of 70 hours instead of 48. Different from Caliber 3186, the rotor of the new movement has ball bearings. The geometry of the pallet fork and escapement wheel has been optimized, and the LIGA plating process allows Rolex 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 bridge, the free hairspring with an overcoil made of paramagnetic niobium-zirconium alloy, and the fine regulator with Microstella weights on the balance. The movement can be adjusted with a special tool without having to remove it from its case.
Rolex has improved the movement on the core virtues of accuracy, longevity, and robustness. The decoration includes a sunburst. Hand engraving does not exist and is not expected. The new movement can be easily identified by a small detail on the dial: a small replica Rolex crown inserted between the words “Swiss Made”.
As is always the case with Rolex, the official chronometer certificate from COSC, the Swiss testing institute, confirms the high level of accuracy at various temperatures and positions. The company’s own internal standards dictate more stringent daily adjustments, between -2 and +2 seconds per day.
Rolex has hit the nail on the head with its new black and blue GMT-Master II steel watch. Although the design has undergone only minor changes over the past 60 years, it has become a classic, appealing in its timelessness rather than appearing dated. The Batman is a more reserved color than the bright red of the Pepsi, and can easily be paired with a suit. The Jubilee bracelet works well with the watch. fake Rolex has also improved the technology with a new movement that has the benefit of an extended power reserve.
In terms of functionality, Rolex offers more than most other manufacturers – from the extension of the bracelet to its time zone adjustment. In addition, accuracy, legibility, and wearing comfort are all at the highest level. We would have preferred to see a transparent back – and Rolex will produce enough timepieces to meet demand.
