In the early 1950s, the members of the British North Greenland Expedition wore Tudor Oyster Prince watches on their wrists while carrying out a series of experiments in the most hostile conditions imaginable on Earth.
New Tudor North Flag were created by the Tudor Style Workshop in order to express on the outside the high level of technology and reliability of its movement. This begins with the choice of a case with integrated bracelet, a type of construction with a sophisticated overtone and a highly qualitative feel. Dial is black, with intensive yellow details....
"The new calibre, MT5621, powering the North Flag model, provides impressive autonomy with power reserve of approximately 70 hours.”
In addition to the hour, minute and central second functions, North Flag also 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.
The bezel, with its circular satin finishes, is composed of two elements that complement one another and fit perfectly together. Matt ceramic, visible on the side, and brushed steel on the upper face, integrate to strengthen the general technical feel conveyed by this model. Finally, the case back is open on to the movement, visible through a sapphire crystal, an unprecedented detail for Tudor.
In 2015, North Flag become the first Tudor model to be fitted with movement developed and produced by the brand itself. The new calibre, MT5621, powering the North Flag model, provides impressive autonomy with power reserve of approximately 70 hours. Its self-winding system is bidirectional and, a first for a Tudor product, it is certified by the Swiss Official Chronometer Testing Institute (COSC).
Tudor offers two options: the first option takes the form of a solid steel bracelet, satin-finished with polished inter-link surfaces. The second is a matt black leather strap, structured with yellow top-stitching and lining. Both are fitted with the Tudor folding clasp in a polished and satinfinished version. Tudor North Flag declared his waterproofness up to 100 meters.
