http://www.ablogtowatch.com/tudor-north-flag-watch/ Does now having models such as the Tudor North Flag with in-house made movements fundamentally change the Tudor brand and narrow the gap between Tudor and Rolex? Maybe. Does it matter? Maybe not. The new in-house made Tudor movement is called the caliber MT5621 and it sounds pretty exciting, being an automatic with 70 hours of power reserve (along with a power reserve indicator on the dial). The MT5621 also features a silicon balance spring and is COSC Chronometer certified. The movement will be visible through a sapphire exhibition back, which is very new for the brand. As far as I know, there has never been a Rolex watch with an exhibition caseback, and now there is what is essentially a Rolex-made movement that is visible through the rear of the case. ... No word on the pricing at this point, but we will know more next week. Having said that, it is safe to say that the Tudor North Flag will cost more than current Tudor sport watches because of the movement but a bit less than Rolex watches. So I am guessing somewhere in the $5,000 - $6,000 range that will still make them a good value for a handsome adventure-style timepiece