Amazing Rolex GMT-Master II “Batman” – Caliber
As is always the case with Rolex, the official chronometer certificate from the COSC, the Swiss testing institute, confirms Rolex’s high accuracy in all temperatures and positions. The company’s own internal standards prescribe even stricter daily adjustments, between -2 and +2 seconds per day. On the chronograph, our test watches met these higher expectations with an average deviation of just -0.5 seconds. All six positions remained between -2 and +2 seconds, with a maximum position deviation of only 4 seconds. The drop in amplitude between the vertical and horizontal positions is manageable. 
However, the GMT-Master II remains in the mid-range. There are more economical alternatives for making a second-time zone, as well as more expensive alternatives. But few other manufacturers have kept pace with fake Rolex when it comes to value retention. Very limited numbers of this new edition have been available since May 2019 – and interested buyers will need to plan for a long wait for delivery over the next few years.
Rolex has hit the nail on the head with this new version of the black and blue GMT-Master II in steel. Although the replica watch‘s design has undergone only minor changes over the past 60 years, it has become a classic, appealing in its timelessness rather than looking dated. The Batman is a more reserved color than the bright red of the Pepsi, and can easily be worn with a suit. The Jubilee bracelet works well with the watch. Rolex has also improved the technology with a new movement that has the benefit of an extended power reserve.
In terms of functionality, replica Rolex offers more features 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 case back – Rolex can produce enough timepieces to meet demand.
Apart from that, with the GMT-Master II, the bezel can be used to temporarily set another time zone. For example, if you are in the United States and working with a company in Europe, simply turn the bezel and the GMT-Master II will show you the time in the desired time zone, so you know at a glance if your business contact is available. All in all, the GMT-Master II offers a very useful time zone function.