Tudor Ranger M79950-0001

Imagen: Tudor, web oficial

The storyWhy this reference matters

Between 1952 and 1954, some thirty men spent two winters on the Greenland ice cap doing glaciology, meteorology and seismic soundings for the British North Greenland Expedition. They wore twenty-six watches of reference 7909, the Oyster Princes Tudor supplied for the trip. The sponsorship is not the interesting part. What matters is that the brand collected the performance data from those watches in extreme cold afterwards and used it to improve the product. It was a field trial dressed up as an adventure.

The Ranger name came later, in the sixties, with the formula that still holds: matte black dial, painted 12, 3, 6 and 9, an affordable answer to the Rolex Explorer from inside the same house. Tudor kept it going until 1988 and then buried it. It came back in 2014 at 41 mm with a supplied calibre, left again in 2020, and returned in July 2022 at 39 mm for the seventieth anniversary of that expedition.

What defines this Ranger is what it has not got. No rotating bezel, no date, no crown guards, a case brushed from top to bottom and not one polished chamfer to hide a mark in. Inside sits the MT5402, the same in-house calibre as the Black Bay Fifty-Eight: 4 Hz, 27 jewels, 70 hours of reserve, COSC certified. The difference between the two watches is not the engine. It is everything Tudor took off the bodywork.

SpecificationsThe numbers, in one table

IdentificationHow to tell it apart

The dial gives it away if you know what to look at: matte black with a grainy texture, Arabic numerals painted — not applied — at 12, 3, 6 and 9, baton markers at the other five-minute positions, beige-toned Super-LumiNova and a seconds hand with a red tip. There is no date window. If you can see one, you are not looking at a 79950.

The case is brushed all over, without polished chamfers, and that uniform finish is the quickest way to tell it from a Black Bay at a glance. It measures 39 mm across, 12 thick, 47 lug to lug and 20 between the lugs, and it is rated to 100 metres — half a Black Bay, because there is no rotating bezel here and no pretence of diving with it.

The previous Ranger, from 2014, was 41 mm and ran a supplied calibre; this one is 39 mm with the in-house MT5402, so the size settles the question on its own. The -0001 suffix means the steel bracelet with T-fit clasp; at launch there was also an olive-green jacquard fabric strap with red and beige stripes, and a hybrid rubber-and-leather one.

CollectingWhat collectors check

A watch with no rotating bezel and no date has fewer things that break and fewer parts to chase down in ten years' time. In exchange, the whole burden of condition falls on the finish. The Ranger's brushing is uniform, and if somebody has polished it you will spot it instantly, because there is no bright surface to hide behind. Look at the lug edges against the light, which is where the rounding starts.

The crystal is domed sapphire with an anti-reflective coating, so scuffs show at an angle rather than head-on: turn it under a lamp before you call it clean. Test the real power reserve too, by winding it fully and leaving it alone over a weekend. Seventy declared hours should have it still running on Monday morning, and if it does not get there the movement is asking for a service.

Twenty-millimetre lugs and an entirely brushed case make this watch a magnet for straps, so plenty of second-hand examples turn up without the bracelet or wearing somebody else's. If you are buying the full set, price the original bracelet into it: it is expensive to replace, has its own T-fit clasp, and will not swap with the other models in the range.

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