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One free scan finds every outdated or missing driver and matches the right update for your exact hardware.Free scan · exact hardware matchThe Tudor Ranger is the closest current alternative if you want an expedition-oriented tool watch; the Black Bay One 36 suits a more compact, everyday look, while the Rolex Explorer 36 is the compact black-dial option with published 100 m water resistance and an approximately 70-hour power reserve. These are different fits, not a universal ranking: case size, design, movement and presentation vary.
What happened to the Tudor North Flag?
The North Flag reference 91210N is no longer a current Tudor model. Hodinkee reported in 2021 that it had been discontinued that year; the report also describes bracelet and leather-strap versions and notes the dial’s yellow accents. This is historical secondary reporting, not a current Tudor confirmation or a complete official specification record. Hodinkee’s 2021 North Flag coverage
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If you specifically want the original, a pre-owned example is a route to consider. Its present price, supply and condition depend on the individual listing and are not established by the historical report.
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| Watch | Published specifications | Best suited to |
|---|---|---|
| Tudor Ranger | 39 mm case; manufacture calibre MT5402; rapid-adjustment clasp, according to Tudor’s collection information. | An expedition-framed Tudor with a larger case than the 36 mm options. |
| Tudor Black Bay One 36 | 36 mm steel case; 10.5 mm thick; 100 m water resistance; calibre MT5400 (COSC); approximately 70-hour power reserve, for reference M79640-0004. | A compact steel Tudor with a more everyday presentation. |
| Rolex Explorer 36 | 36 mm Oystersteel case; 100 m water resistance; calibre 3230; approximately 70-hour power reserve; Superlative Chronometer certification. | A compact black-dial sports watch from Rolex. |
Which one should you choose?
Choose the Tudor Ranger for expedition-watch character
Tudor positions the Ranger around exploration, describing it as “a tool watch celebrating the spirit of this daring adventure” in reference to the British North Greenland Expedition. Its 39 mm case makes it the largest of these three by stated diameter. The collection page also identifies manufacture calibre MT5402 and a rapid-adjustment clasp. Tudor Ranger collection and specifications
#1 Best Overall
- Tudor Ranger Automatic Black Dial Men's Stainless Steel Watch M79950-0001
This is the clearest match if the North Flag’s tool-watch identity matters more to you than keeping to a 36 mm format. The cited collection information does not provide a live price comparison; check the exact current reference and configuration for variant-specific details.
Choose the Black Bay One 36 for a compact Tudor
The Black Bay One 36 offers a 36 mm steel case, 10.5 mm thickness, 100 m water resistance and approximately 70 hours of power reserve. Tudor specifies calibre MT5400 with COSC certification for reference M79640-0004. Tudor Black Bay One 36 reference M79640-0004
Rank #2
- Tudor Ranger Automatic Black Dial Men's Fabric Watch M79950-0003
It is the practical direction if you want a smaller steel Tudor with a less overtly expedition-oriented presentation. The linked specifications describe one variant; Tudor offers multiple Black Bay One 36 versions, so verify the dial and bracelet against the exact reference you are considering.
Choose the Explorer 36 for a compact black-dial sports watch
Rolex lists the Explorer 36 with a 36 mm Oystersteel case, 100 m water resistance, calibre 3230 and approximately 70 hours of power reserve. It also carries Rolex’s Superlative Chronometer certification. Rolex Explorer 36 specifications
Rank #3
- Tudor 1926 Automatic Black Dial 39mm Stainless Steel Men's Watch M91550-0002
This option fits if you want the compact format and a black-dial sports-watch character from Rolex. Rolex says its watches may be sold and maintained only by official retailers. The specifications do not establish price or availability.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.What to compare before buying
Nominal case diameter alone cannot predict how a watch will fit your wrist. Compare the dimensions and wearing details that matter to you, and check them on the exact reference rather than assuming all versions share the same configuration.
Quick Recap
Best Value
- Tudor 1926 Automatic Silver Dial Men's 39 mm Watch M91551-0001
Rank #4
- Black Dial Design: Black dial with full Arabic numerals pairs with an adjustable nylon strap for a rugged, everyday outdoor look
- Adjustable Strap: A comfortable band fits securely up to an 8-inch wrist circumference for everyday wear, day in and day out
- Indiglo Backlight: A push of the button illuminates the dial and luminous hands in the dark, day or night, rain or shine
- All-Weather Durability: A mineral glass crystal and water resistance to 50 meters keep this field watch ready for daily wear
- Built to Last: A Timex watch is designed for durability and everyday reliability; every piece reflects our commitment to quality without compromise
- Case size and thickness: The stated diameters range from 36 mm to 39 mm; the cited Black Bay One 36 is 10.5 mm thick. Consider how the full case shape and proportions will wear, not diameter in isolation.
- Dial layout and legibility: Compare the actual dial design and contrast with the North Flag’s distinctive yellow accents in mind.
- Water resistance: The cited Black Bay One 36 and Explorer 36 specifications state 100 m. The cited Ranger collection information does not state a water-resistance figure.
- Movement and reserve: The sources identify different calibres and certifications. Approximately 70 hours is stated for the Black Bay One 36 and Explorer 36; do not assume the same reserve for the Ranger from the cited collection page.
- Bracelet and clasp: Check adjustment and bracelet details for the exact version. Tudor’s Ranger collection information mentions a rapid-adjustment clasp; specifications for one reference should not be generalized to every variant.
- Price and condition: Compare current quotes for the exact watch and configuration, and decide whether you are considering new or pre-owned. The published specifications here do not support a current price or value ranking.
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
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