Tudor
Black-Bay Chronograph Tudor Blue - Full-set box & Papers

Tudor Black Bay Chrono “Tudor Blue” Ref. 79360B — 41 mm Stainless steel, blue dial, steel tachymeter bezel, automatic manufacture chronograph calibre MT5813, sapphire crystal, water-resistant 200 m — Pre-owned 2024 Full Set (box & papers) 

“Between the historic Big Block models and today’s chronographs, it draws the perfect line: a sporty Tudor, blue and contemporary, built both for collecting and for real life.”

On the wrist, the link with that tradition is immediately obvious. In the morning you pick up the watch, feel the reassuring density of the 41 mm steel case, click the screw-down pushers before starting the chronograph. The blue dial catches the light, the contrasting sub-dials are instantly legible, and the steel tachymeter bezel adds the sporting vocabulary inherited from classic racing chronographs. You wear it with a shirt, chinos and a blazer: the blue remains elegant, never loud, and the five-link bracelet gives that supple, living drape that recalls historic jubilee-style bracelets, while still feeling completely contemporary. In the afternoon, the watch moves effortlessly from office to open road. On a stretch of motorway, a tree-lined A-road or a winding route that might as well lead to Monza in another scenario, the chronograph function comes into its own: you time an interval, a journey, a stint, recreating the gesture enthusiasts associate with classic sports chronographs. In the evening, there is no need to take the Black Bay Chrono 79360B off. Over a darker shirt, a roll-neck, a leather jacket or a simple T-shirt under an overshirt, the Tudor blue dial shifts character, becoming deeper, almost nocturnal. The chronograph remains very much present, but the watch now behaves like a discreet pillar of a collection: a piece you can wear very often without tiring of it, knowing it ticks all the boxes of a future classic.

The story of Tudor chronographs begins in 1970 with the manual-wind Oysterdate, and truly asserts itself with the following series, culminating in the celebrated Prince Oysterdate “Big Block” models in 1976, the brand’s first automatic chronographs, powered by the robust Valjoux 7750 and housed in a thicker case that earned them their nickname. These watches, with their imposing profile and strongly sporting vocation, have become icons among collectors: triple registers, tachymeter or rotating bezels, date display, and an unmistakable “pit-lane” character.

The Black Bay Chrono, launched several decades later, picks up this historical thread by fusing the language of Black Bay dive watches with that of Tudor racing chronographs. The core idea remains that of a robust chronograph, water-resistant and highly legible, but now in a fully modern execution: manufacture movement, column wheel, vertical clutch, 70-hour power reserve, COSC certification, and a design that embraces contemporary proportions while remaining perfectly wearable day to day. The Ref. 79360B pushes this heritage one step further with its “Tudor Blue” dial, a strongly identifiable shade that evokes both certain historic pieces and the brand’s current aesthetic. In a collection, it often becomes “the modern Tudor chrono”: the watch that talks to a vintage Big Block or a 1970s Monte Carlo, yet is worn with zero hesitation thanks to its contemporary movement and 200 m water resistance.

This Tudor Black Bay Chrono 79360B is built around a 41 mm stainless-steel case with broad, purposeful lines and a mix of satin-brushed surfaces and polished chamfers. The mid-case integrates crown guards and screw-down pushers, a clear nod to the brand’s dive and racing chronos. The fixed steel tachymeter bezel is engraved with a 60-unit scale, allowing average speeds or rates to be calculated in the purest tradition of sports chronographs.

The blue dial is one of this reference’s strongest signatures. Deep and ever-changing depending on the light, it is punctuated by contrasting sub-dials at 3 and 9 o’clock, recalling both certain historic Tudor chronos and the “panda” aesthetic so closely associated with motorsport. The applied hour markers and Snowflake hands are filled with modern luminous material, ensuring excellent readability in low light—whether in a car cabin, a meeting room or a bar at the end of the day. At 6 o’clock, the date completes the functional package without overloading the dial. Inside beats the manufacture calibre MT5813, an automatic chronograph movement developed on a Breitling B01 base and extensively reworked by Tudor, with column-wheel control and vertical clutch, a silicon balance spring, COSC certification and an approximate 70-hour power reserve. This movement, tested extensively, is known for its robustness and reliability, offering smooth, precise pusher feel with no unwanted jumps or hesitation of the chronograph hand. The whole is protected by a slightly domed sapphire crystal, resistant to everyday scratches, and a screw-down solid caseback which, together with the screw-down crown, guarantees water resistance to 200 metres—an impressive level for such a refined chronograph, placing the Black Bay Chrono firmly in the realm of genuinely capable tool watches. On the wrist, the five-link steel bracelet with folding clasp and fine adjustment system delivers remarkable comfort: supple and well articulated, it allows for a precise fit and gives the watch that living, fluid drape that Tudor and Rolex bracelet aficionados appreciate so much.

In everyday life, this Black Bay Chrono 79360B functions both as a collector’s piece and as a genuine daily-wear watch. In office mode, it pairs naturally with a suit, blazer, shirt or roll-neck: the 41 mm diameter asserts its character without going over the top, while the blue dial remains balanced enough to sit comfortably in a formal environment. The five-link bracelet is crucial here: it softens the watch’s presence, making it feel more fluid and more elegant than a simple three-link bracelet. At weekends, the 79360B returns to its sporting roots. With jeans, a flight jacket, a leather bomber, a hoodie or an overshirt, it becomes the enthusiast’s chronograph—the one you strap on to watch a race, visit a circuit, drive a great B-road or simply time a dish in the kitchen. The tachymeter bezel recalls the world of dashboard timers; the contrasting registers and Tudor typography instantly evoke the heritage of the Oysterdate, Monte Carlo and Big Block lines. Within a collection, this “Tudor Blue” Black Bay Chrono from 2024 fills a very strategic role: modern enough to be worn without a second thought, distinctive enough not to blend into the background of other chronos, it often becomes the brand’s flagship sports model in the box—the watch that connects Tudor’s past and future on the wrist of a knowledgeable enthusiast.

The watch offered here is a Tudor Black Bay Chrono Ref. 79360B from 2024, with blue dial and five-link steel bracelet, in very attractive overall condition, consistent with careful wear. The 41 mm case retains crisp lines and handsome contrasts between polished and brushed surfaces. The steel tachymeter bezel is in excellent condition; the blue dial and its sub-dials are flawless; the sapphire crystal is clean, with no distracting scratches. The bracelet has even tension and no abnormal stretch, with a clasp that functions perfectly. The watch is sold as a Full Set, with its original Tudor box, outer box, booklets, warranty card and all accessories supplied at the time of purchase. Mostra also provides a Mostra luxury case or equivalent presentation solution, ideal for storing, displaying or safely transporting the watch. Taken together, this represents a particularly compelling opportunity for anyone seeking a recent 2024 Black Bay Chrono 79360B, complete and carefully selected.

As with all watches offered by Mostra, this Tudor Black Bay Chrono 79360B has been thoroughly inspected by our in-house watchmaking workshop before reaching the window. All key points have been checked: performance of the MT5813 calibre, chronograph reset, water-resistance (within the limits specific to each model), setting functions, and the integrity of the case, bracelet, crown and bezel—so you can enjoy a worry-free wearing experience from day one.

The watch is covered by Mostra’s three-year warranty, an exceptional duration on the pre-owned market, especially valuable for a modern manufacture chronograph intended for regular, long-term wear. Mostra—renowned for its service and customer experience—has been recognized in the specialist press as one of France’s leading pre-owned watch experts. By choosing this Tudor Black Bay Chrono 79360B from Mostra, you are not simply buying an iconic, contemporary Tudor chronograph; you are entering a long-term buying experience, built on transparency, rigorous selection and personalised support. Our team will advise you on the choice of model, the coherence of your collection, bracelet sizing and good maintenance practices, with the calm, precise attention that makes all the difference when investing in a sporty, collectible timepiece. Every watch is examined with great care before being offered for sale, so that your wearing pleasure is both immediate and lasting, and our after-sales follow-up allows you to enjoy your Black Bay Chrono over the years with a trusted point of contact. This proximity, this attentive listening and this culture of detail also explain our clients’ loyalty: our reviews are verified and carry a 5-star rating, reflecting a level of service and customer experience that meets the expectations of seasoned enthusiasts as well as those choosing their first Tudor.