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NORTHFLAG
IS BACK
Almost as if rediscovered frozen in ice, the TUDOR
Northflag is back. Imbued with the daring spirit
of the pioneers and adventurers alike that wrote
TUDOR’s history, from the ice sheet of North
Greenland to the high skies of Europe and the
depth of the seven seas, Northflag returns with
a new design, a GMT-function and the Master
Chronometer certification.
It was on the ice sheet of North Greenland, in the 1950s, that TUDOR cemented a “bullet-proof” tool watch reputation, being put to the ultimate test for two long and cold years on the wrists of daring
adventurers as part of the equipment issued to the members of the British North Greenland Expedition. This was not the first time, much less the last, that TUDOR watches served their owners dependably, but this time it was all thoroughly documented. The new TUDOR Northflag perpetuates the ice-cold legacy of these pioneers, adding a 24-hour hand to very robust mechanical timekeeping, a feature of particular interest in places where the polar night or midnight sun phenomenon respectively brings months of darkness or twilight to one’s life.
The planting of a flag often marks firsts, and in the case of TUDOR, the aptly named Northflag – where “North” is a reference to the seminal British North Greenland Expedition – was the first watch of the brand, back in 2015, to be powered by a mechanical movement developed and manufactured in-house: the high-performance calibre MT5621. Now, in its second gen version, the Northflag retains the general lines and distinctive design elements of the historical TUDOR watch that inspired it in the first place, the 1973 Ranger II model. This includes an integrated bracelet design, where the bracelet connects to the case in a visually continuous effect. It also includes a very characteristic black dial with large Arabic hour markers, now rendered in monobloc luminous ceramic and paired with a rehaut sporting a 24-hour graduation angled at 45 degrees. Lastly, the arrow-shaped 24-hour and hours hands, coupled with an angular seconds hand and a baton-shaped minutes hand, complete the historical nod.
INTEGRATED
DESIGN
Another defining characteristic of the Northflag is its integrated bracelet design. The Northflag comes fitted on a dedicated two-link, mostly brush-finished, 316L stainless steel integrated bracelet, with polished link chamfers and a TUDOR “T-fit” rapid adjustment clasp. Easy to use, requiring no tools and offering five positions, this practical system allows wearers to carry out fine, instant adjustments of the total length of the bracelet along an adjustment window of 8mm. The clasp also features ceramic ball bearings that ensure a smooth and secure closure in addition to adding a pleasing tactile element to the action of the clasp.
To achieve the visually continuous effect between the bracelet and case, matching design details have been conceived for the case, starting with the finish – in this case brushed – with various types of satin brushes depending on the part of the case in question. Mirroring the bracelet execution, polished chamfers highlight the top of the lugs and bezel respectively. The subtly cone-shaped winding crown also is rendered in matt with a combination and brushing and bead-blasting. Finally, in true Northflag spirit, seeing that the Northflag back in 2015 was a watch of multiple TUDOR firsts, including first Manufacture Calibre and first open case back, the case back is open with a slightly domed sapphire crystal revealing the Master Chronometer-certified Manufacture Calibre MT5652-U.
To achieve the visually continuous effect between the bracelet and case, matching design details have been conceived for the case, starting with the finish – in this case brushed – with various types of satin brushes depending on the part of the case in question. Mirroring the bracelet execution, polished chamfers highlight the top of the lugs and bezel respectively. The subtly cone-shaped winding crown also is rendered in matt with a combination and brushing and bead-blasting. Finally, in true Northflag spirit, seeing that the Northflag back in 2015 was a watch of multiple TUDOR firsts, including first Manufacture Calibre and first open case back, the case back is open with a slightly domed sapphire crystal revealing the Master Chronometer-certified Manufacture Calibre MT5652-U.
THE GMT
MANUFACTURE
CALIBRE MT5652-U
The Manufacture Calibre MT5652-U, which powers the Northflag, illustrates the technical development process signature of TUDOR, drawing on adaptable movement architecture capable of integrating new functions rather than resorting to additional modules. A minor detail for some, but a must for watchmaking purists.
Displaying hours, minutes, seconds, the date and GMT functions, it offers the general look and feel of TUDOR Manufacture Calibres with dedicated sun laser design and bears the words “Master Chronometer” on its bridges, emphasising its distinctive performance. Its rotor is fashioned in tungsten monobloc and is openworked. It also features the distinctive laser radial grooving with sand-blasted details. Its bridges and mainplate have alternating sand-blasted and polished surfaces and laser decorations.
The build of the Manufacture Calibre MT5652-U is designed to ensure robustness and precision. To do this, the variable inertia balance wheel is maintained by a sturdy traversing bridge with a two-point anchoring.
Displaying hours, minutes, seconds, the date and GMT functions, it offers the general look and feel of TUDOR Manufacture Calibres with dedicated sun laser design and bears the words “Master Chronometer” on its bridges, emphasising its distinctive performance. Its rotor is fashioned in tungsten monobloc and is openworked. It also features the distinctive laser radial grooving with sand-blasted details. Its bridges and mainplate have alternating sand-blasted and polished surfaces and laser decorations.
The build of the Manufacture Calibre MT5652-U is designed to ensure robustness and precision. To do this, the variable inertia balance wheel is maintained by a sturdy traversing bridge with a two-point anchoring.
It is certified as a chronometer by the Official Swiss Chronometer Testing Institute (COSC), with its performance going beyond the standards set by this independent institute.
In fact, where COSC allows an average variation in the daily rate of an uncased movement of between -4 and +6 seconds, and TUDOR applies a 6-second (-2/+4) variation standard on its fully assembled watches, METAS requires a Master Chronometer certified watch to run within a tolerance range of 5 seconds (0/+5). Not only is the Manufacture Calibre MT5652-U certified to be more accurate, it is also rated as anti-magnetic, making it impervious to magnetic fields below 15,000 gauss.
Another notable feature is that the power reserve of the Manufacture Calibre MT5652-U is “weekend proof” with a METAS-guaranteed 65 hours running time when fully wound. This enables the wearer to take the watch off on a Friday evening and put it back on again on Monday morning without having to wind it.
In fact, where COSC allows an average variation in the daily rate of an uncased movement of between -4 and +6 seconds, and TUDOR applies a 6-second (-2/+4) variation standard on its fully assembled watches, METAS requires a Master Chronometer certified watch to run within a tolerance range of 5 seconds (0/+5). Not only is the Manufacture Calibre MT5652-U certified to be more accurate, it is also rated as anti-magnetic, making it impervious to magnetic fields below 15,000 gauss.
Another notable feature is that the power reserve of the Manufacture Calibre MT5652-U is “weekend proof” with a METAS-guaranteed 65 hours running time when fully wound. This enables the wearer to take the watch off on a Friday evening and put it back on again on Monday morning without having to wind it.
TUDOR QUALITY
With the reintroduction of the Northflag, TUDOR has successfully
submitted yet another model for tests to obtain the Master
Chronometer certification. This is part of a constant bid to improve
the quality of its products and another step towards a future where
the entire TUDOR collection will be Master Chronometer certified.
This certification, offered by a Swiss government body, the Swiss
Federal Institute of Metrology or METAS, comes as an independent
confirmation of the exceptional quality of TUDOR watches.
COMPREHENSIVE INDEPENDENT CERTIFICATION AND HIGH STANDARDS
The METAS Master Chronometer certification is comprehensive and covers the main functional characteristics of a watch including precision, resistance to magnetic fields, waterproofness and power reserve. Its standards are incredibly high, starting with precision.
In order to qualify, a watch must be able to function within a 5-second range of variation each day (0/+5), that is to say 5 seconds tighter than the Official Swiss Chronometer Testing Institute (COSC) (-4/+6) and a second tighter than TUDOR’s internal standard (-2/+4), applied to the brand’s models with a regular Manufacture Calibre.
In order to qualify, a watch must be able to function within a 5-second range of variation each day (0/+5), that is to say 5 seconds tighter than the Official Swiss Chronometer Testing Institute (COSC) (-4/+6) and a second tighter than TUDOR’s internal standard (-2/+4), applied to the brand’s models with a regular Manufacture Calibre.
The certification also guarantees the timekeeping accuracy of a watch subjected to magnetic fields of 15,000 gauss.
Finally, it also certifies the waterproofness claimed by the manufacturer as well as the power reserve.
It should also be noted that two prerequisites are necessary before the certification can be obtained: manufacturing must conform with the criteria of Swiss Made, and the movement must be certified by the Official Swiss Chronometer Testing Institute (COSC).
Finally, it also certifies the waterproofness claimed by the manufacturer as well as the power reserve.
It should also be noted that two prerequisites are necessary before the certification can be obtained: manufacturing must conform with the criteria of Swiss Made, and the movement must be certified by the Official Swiss Chronometer Testing Institute (COSC).
CRITERIA AND TESTS FOR
MASTER CHRONOMETER
CERTIFICATION BY METAS
All the tests and prerequisites
leading to the Master Chronometer
certification, which the Northflag has achieved, are summarised below:
▸ Swiss made
▸ Certification by the Official Swiss Chronometer Testing Institute (COSC)
▸ Precision at two temperatures, in six positions and at two levels of power reserve: 100% and 33%
▸ Smooth functioning when exposed to a magnetic field of 15,000 gauss and precision following exposure
▸ Certified waterproofness to 100m
▸ Certified power reserve of 65 hours
▸ Swiss made
▸ Certification by the Official Swiss Chronometer Testing Institute (COSC)
▸ Precision at two temperatures, in six positions and at two levels of power reserve: 100% and 33%
▸ Smooth functioning when exposed to a magnetic field of 15,000 gauss and precision following exposure
▸ Certified waterproofness to 100m
▸ Certified power reserve of 65 hours
THE TUDOR
MANUFACTURE
Every TUDOR watch is assembled and fully tested to TUDOR’s
superior standards at the new TUDOR Manufacture located in
Le Locle, Switzerland.
This new state-of-the-art facility, bringing together the know how of watchmakers with the best in production management and automated testing systems, was completed in 2021 after three years of construction.
All decked out in TUDOR red, the Manufacture spans over four levels totalling 5,500m² and is physically and visually connected to the neighbouring Kenissi Manufacture, the TUDOR movement production facility founded in 2016. With Kenissi and a network of TUDOR-owned affiliates, the brand has been able to integrate the development and production of high-performance mechanical calibres. As a consequence, TUDOR now fully masters the manufacturing of strategic components and can guarantee their quality.
This new state-of-the-art facility, bringing together the know how of watchmakers with the best in production management and automated testing systems, was completed in 2021 after three years of construction.
All decked out in TUDOR red, the Manufacture spans over four levels totalling 5,500m² and is physically and visually connected to the neighbouring Kenissi Manufacture, the TUDOR movement production facility founded in 2016. With Kenissi and a network of TUDOR-owned affiliates, the brand has been able to integrate the development and production of high-performance mechanical calibres. As a consequence, TUDOR now fully masters the manufacturing of strategic components and can guarantee their quality.
THE TUDOR GUARANTEE
Since its creation by Hans Wilsdorf in 1926, and in line with his vision of an ideal watchmaking product, TUDOR has never stopped producing the most robust, durable, reliable and precise watches in existence today. Bolstered by this experience, and confident in the knowledge of the superior quality of its watches, TUDOR offers a five-year guarantee on all its products.
This guarantee does not require the watch to be registered or any periodic maintenance checks to be performed and is transferable should the watch change ownership during coverage. TUDOR also recommends that its watches should be serviced approximately every 10 years depending on the model and the extent of its use on a day-to-day basis.
TUDOR IS
"BORN TO DARE"
In 2017, TUDOR launched a new campaign with
the “Born To Dare” signature. It reflects both the history of the brand and what it stands for today. It tells the adventures of individuals who have achieved the extraordinary on land, on ice, in
the air and underwater, with a TUDOR watch
on their wrists. It also refers to the vision of Hans Wilsdorf, the founder of TUDOR, who manufactured TUDOR watches to withstand the most extreme conditions, watches made for the
most daring lifestyles.
It is testimony to TUDOR’s singular approach to watchmaking, which has made it what it is today. At the cutting edge of the watchmaking industry, its innovations are now essential benchmarks. The TUDOR “Born To Dare” spirit is supported throughout the world by first class ambassadors, whose achievements result directly from a daring approach to life.
It is testimony to TUDOR’s singular approach to watchmaking, which has made it what it is today. At the cutting edge of the watchmaking industry, its innovations are now essential benchmarks. The TUDOR “Born To Dare” spirit is supported throughout the world by first class ambassadors, whose achievements result directly from a daring approach to life.
ABOUT TUDOR
TUDOR is an award-winning Swiss-made watch
brand, offering watches with refined aesthetics, proven reliability and unique value for money. The origins of TUDOR date back to 1926, when “The Tudor” was first registered as a brand on
behalf of the founder of Rolex, Hans Wilsdorf. He created the Montres TUDOR SA Company in 1946 to offer watches with the quality and dependability of a Rolex, at a more affordable price point.
Because of their robustness and affordability, throughout their history TUDOR watches have been chosen by the boldest adventurers on land, underwater and on ice. Today, the TUDOR collection includes emblematic models such as Black Bay, Pelagos, 1926 and TUDOR Royal.
Since 2015, TUDOR has also offered mechanical Manufacture Calibres with multiple functions and superior performance.
Because of their robustness and affordability, throughout their history TUDOR watches have been chosen by the boldest adventurers on land, underwater and on ice. Today, the TUDOR collection includes emblematic models such as Black Bay, Pelagos, 1926 and TUDOR Royal.
Since 2015, TUDOR has also offered mechanical Manufacture Calibres with multiple functions and superior performance.
NORTHFLAG
REFERENCE 9140G1A0U
CASE
▸ 40mm 316L stainless steel case with satin brushed and polished finishes
▸ 12.7mm thick
▸ 48.8mm lug to lug
▸Open case back with domed sapphire crystal
▸ 12.7mm thick
▸ 48.8mm lug to lug
▸Open case back with domed sapphire crystal
BEZEL
Fixed 316L stainless steel bezel with satin-brushed and polished finishes
WINDING CROWN
▸ 316L stainless steel screw-down cone
shaped winding crown with the TUDOR
shield in relief
DIAL
▸Black with 24-hour graduated rehaut
▸Date at 3 o’clock
▸Date at 3 o’clock
CRYSTAL
Domed sapphire crystal
WATERPROOFNESS
METAS-certified waterproof to 100m (330 ft)
BRACELET
Two-link 316L stainless steel bracelet with satin-brushed and polished finishes, with TUDOR “T-fit” rapid adjustment clasp
MOVEMENT
▸Manufacture Calibre MT5652-U with GMT function
▸ Self-winding mechanical movement with bidirectional rotor system
▸ Self-winding mechanical movement with bidirectional rotor system
POWER RESERVE
METAS-certified 65 hours
PRECISION
▸ 0/+5 seconds of variation per 24 hours
▸ Chronometer officially certified by COSC (Official Swiss Chronometer Testing Institute)
▸Master Chronometer officially certified by METAS (Swiss Federal Institute of Metrology)
▸ Chronometer officially certified by COSC (Official Swiss Chronometer Testing Institute)
▸Master Chronometer officially certified by METAS (Swiss Federal Institute of Metrology)
FUNCTIONS
▸Hours, minutes and seconds hands at the centre
▸ 24-hour hand at the centre
▸ Instantaneous date at 3 o’clock with rapid adjustment without non correction range
▸ Stop-seconds for precise time setting
▸ 24-hour hand at the centre
▸ Instantaneous date at 3 o’clock with rapid adjustment without non correction range
▸ Stop-seconds for precise time setting
OSCILLATOR
▸ Variable inertia balance, micro-adjustment by screw
▸Non-magnetic silicon balance spring
▸ Frequency: 28,800 beats/hour (4 Hz)
▸Non-magnetic silicon balance spring
▸ Frequency: 28,800 beats/hour (4 Hz)
TOTAL DIAMETER
31.8mm
THICKNESS
7.5mm
JEWELS
32 jewels
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