The Top Quality Tudor North Flag Replica Watch is tough to place in Tudor’s current collection. The hands look like those of the Ranger, but the case is different from their other watches. The most notable feature of this new watch, however, is not the new design, but the movement. Inside is the TUDOR MT5621, the first in-house movement made by Tudor, bumping them up onto the next level. The press release describes the new movement.
Here’s another Baselworld 2015 novelty, this time from Tudor. Click “Read More” to fully discover the watch.
The new calibre, TUDOR MT5621, powering the North Flag model, provides impressive autonomy. Its power reserve of approximately 70 hours means that its wearer can, for example, take off the watch on Tudor North Flag Replica evening and put it on again on Monday morning without having to wind it. In addition to the hour, minute and central second functions, it provides an instant date display visible through an aperture positioned at 3 o’clock, as well as a power reserve indicator in the form of a disc at 9 o’clock. Beating to a frequency of 28,800 beats/hour or 4 Hz, the calibre TUDOR MT5621 is regulated by a variable inertia oscillator with silicon balance spring spring, held in place by a traversing bridge fixed at both sides to improve resistance to shocks and vibrations. Its self-winding system is bidirectional and, a first for a TUDOR product, it is certified by the Swiss Official Chronometer Testing Institute (COSC).
The new watch is 40mm in diameter and crafted out of stainless steel. There are two versions as well, one with a stainless steel bracelet, the other with a strap. The crown is screw-down, which ensures water resistance up to 100m. 
This Tudor Replica Watch could be done easily with a push/pull crown, but when someone spends that much on a watch, they expect everything to be top-notch. More pictures and a video below.