Tudor Black Bay Monochrome Review: The "Gilt-Free" Master Chronometer Diver

Since its introduction in 2012, the Black Bay collection has been the undisputed flagship of the modern Tudor portfolio. Its appeal to collectors springs from its elegantly melded hodgepodge of elements from several different iterations of the Rolex-owned brand’s fondly remembered dive watch, the Oyster Prince Submariner, whose inaugural edition came in 1954. The Black Bay model, originally called the Heritage Black Bay and sporting a bold burgundy-colored bezel, has expanded over the years into a plethora of sizes, colorways, and material options — including the 39mm Black Bay 58 and 37mm Black Bay 54 series, as well as chronograph and GMT iterations.

However, the core Black Bay family, the one directly descended from those Heritage models, is still sized at a stately 41mm in diameter, with cases predominantly in steel and dive-scale bezel inserts made of anodized aluminum. It is this core family that welcomed the “Monochrome” edition of the Black Bay in 2024 — a sober yet oh-so-sleek iteration of the vintage-inspired sport watch, matching a matte black dial with a dive-scale bezel in the same hue and housing an in-house movement boasting an elite level of chronometric excellence. Here is a closer look at the Tudor Black Bay Monochrome, from its outer to inner details. 

Case, Bezel, and Crown

The watch’s stainless steel case comes in at 41mm in diameter, the dimensions established since 2012, but Tudor has made this new-generation case notably thinner on the wrist, with a profile of 13.6mm compared to the 14.8mm height of earlier models. Lug to lug, the Black Bay Monochrome spans 49.4mm. Up close and in the hand, you’ll note that the easy-to-grip, prehensile design of the unidirectional rotating bezel, and the numerals of the dive scale on the black aluminum insert are subtly curved to align with the contours of the outer ring.

Enthusiasts will also appreciate the small details on the screw-down crown, which helps secure the Black Bay’s sturdy 200-meter water resistance. The crown features an engraved, vintage Tudor rose emblem (replacing the more modern Tudor shield) and has been redesigned, both to better echo the case’s curves and to settle into a position more flush with the middle case band, rendering its tube invisible. The case is finished with a combination of polishing and satin finishing and is topped by a domed sapphire crystal with antireflective coating. 

Dial and Hands

Beneath the domed crystal sits a more subtly domed dial, whose satin black surface is finished with a soft radial brushing that offers up an intriguing shine under direct light. Fans of the Black Bay series will find all of its familiar hallmarks on the dial, along with some subtle refinements. Familiar elements include the so-called “snowflake” handset, drawn from the Submariner Ref. 7016 from 1969 (a graphic element, legend has it, suggested by the original Sub’s intended audience, French military divers) and a set of geometrical hour markers — round dots and rectangles, with a dominant inverted triangle at 12 o’clock — derived from Tudor Submariners on the market in the ‘60s and ‘70s. The seconds hand is executed in the classic “lollipop” design, reminiscent of early diver’s watches, replacing the apparently not-universally-beloved seconds hand from previous Black Bay 41 models, which used the “snowflake” motif for the seconds hand’s tip.

The new seconds hand is not the only revision that sharp-eyed wearers will notice; the dial’s overall aesthetic is cleaner and more subdued, with accents in silver and stark white, eschewing the use of faux-vintage and gilt elements that were common on this model’s antecedents. This streamlining succeeds in drawing emphasis to the Black Bay’s utilitarian, tool-watch heritage, as does the use of Grade A Swiss Super-LumiNova on the silver-toned hands and markers for a bright green glow in the dark. The final notable, new element on the ebony-tinted Monochrome dial is the “Master Chronometer” text above 6 o’clock in contrasting white. 

Master Chronometer Movement:

“Master Chronometer,” of course, refers to the most important upgrade Tudor has given to the watch, which ticks away diligently behind a solid steel caseback: the proprietary Caliber MT5602-U, which achieves the lofty designation by earning certification for its accuracy, robustness, and antimagnetic properties from not one but two prestigious Swiss testing agencies, COSC (Contrôle Officiel Suisse des Chronomètres) and METAS (Swiss Institute of Metrology). To earn a COSC chronometer certification, a mechanical movement must undergo a 15-day regimen of tests in several different positions and achieve, among other criteria, a daily average precision of -4/+6 seconds.

A METAS Master Chronometer certification is even tougher to achieve: to meet the standard, a fully cased watch movement is subjected to eight specific tests that evaluate the following: functionality of both movement and watch during exposures to magnetic fields of 15,000 gauss; deviation of running time in six positions; deviation of running time at different levels of power reserve; deviation of average daily rate variation under a 15,000 gauss magnetic field; average daily precision at six different positions and two different temperatures; power reserve; and 200-meter water resistance.

In addition to all of these attributes, the automatic Caliber MT5602-U offers a “weekend-proof” power reserve of 70 hours, or nearly three full days; a silicon balance spring that contributes to its industry-leading magnetic resistance; and a variable-inertia balance wheel poised in an innovative two-point traversing bridge architecture that is a technical hallmark of Tudor’in-house movements. Despite the fact that it’s hidden behind a solid caseback, the movement is also elite in its design and finishing: the self-winding rotor is made from a monobloc of tungsten and openworked; the mainplate and bridges are adorned with a “sun laser” radial grooved motif with sand-blasted details. Its “Master Chronometer” status is proudly called out again on the bridges, with their alternating polished and sandblasted surfaces and laser decorations. 

Bracelets and Strap

Tudor offers the Black Bay on a choice of two stainless steel bracelets: an entirely satin-brushed three-link version or a more intricate five-link bracelet, with oval-shaped links and alternating brushed and polished finishes. Both are secured by Tudor’s proprietary, user-friendly "T-fit" safety clasp, whose mechanism uses a system of ceramic ball bearings  to enable the wearer to modify the bracelet length across five positions, without tools, over an 8mm window.

The three-link bracelet pays homage to the "rivet-style" architectures that defined Tudor’s chronographs and divers during the 1950s and 1960s. It not only repliactes those ancestors’ stepped construction, in which each link tapers slightly toward the clasp, but also the visible rivet heads along the flanks. The black rubber strap, which comes in three sizes, imparts a sportier aesthetic than the bracelets, easily adjusts to a perfect fit thanks to the T-Fit clasp, and incorporates the dial’s “snowflake” motif as a tactile texture on the inside.

Pricing

On the rubber strap, the Black Bay Monochrome retails for $5,075. The bracelet versions sell for $5,325 (on the three-link) and $5,450 (on the five-link). You can learn more about the Tudor Black Bay collection on the brand’s website.