Cartier
Tank Solo Or & Acier Moyen Modèle - Crocodile Black Bracelet

Cartier Tank Solo Small Model reference W5200024, 2014 example, rectangular case measuring approximately 31 × 24.4 mm and only 5.6 mm thick, upper case, brancards and bezel in 18-carat 750/1000 rose gold, solid stainless-steel caseback, silvered opaline dial with black Roman numerals, railway minute track, secret Cartier signature incorporated into numeral X, blued-steel sword-shaped hands, sapphire crystal, beaded crown set with a blue spinel cabochon, leather strap, 18-carat rose-gold pin buckle, Swiss Made Cartier calibre 157 quartz movement, electronic oscillator operating at 32,768 Hz, 4 jewels, hours-and-minutes display, powered by a type 321 / SR616SW battery, original water resistance rated to 3 bar or 30 metres, watch supplied with its original Cartier warranty card dated 2014, inspected and authenticated by the Mostra workshop, supplied with a Mostra Certificate of Authenticity and covered by Mostra’s 3-year warranty.

“Some watches age with their period; others seem to have been designed outside it. The Tank belongs to the latter family. More than a century after Louis Cartier transformed the silhouette of a machine of war into a few lines of remarkable elegance, two brancards, Roman numerals and two blue hands are still enough to identify one of the most famous watches in the world.”

The 2014 Cartier Tank Solo W5200024 belongs to a story extending far beyond that of a single reference. To understand this small rose-gold and steel watch, one must return to 1917, when Louis Cartier designed a watch whose architecture broke with the round cases still dominating wristwatch design. Seen from above, its composition evoked the silhouette of the new tanks used during the First World War: a rectangle at the centre, flanked by two parallel lines recalling the tracks. Louis Cartier nevertheless transformed this industrial and military inspiration into an object of almost radical refinement. The sides became the famous “brancards”, the strap naturally continued their line and the rectangular dial received the elements that would gradually become inseparable from Cartier: Roman numerals, railway minute track and sword-shaped hands.

The strength of the concept lies precisely in the fact that it has hardly ever needed to be reinvented. Since its commercial introduction at the end of the 1910s, the Tank has been interpreted in many forms, from the Tank Louis Cartier to the Tank Américaine, from the Tank Française to the Must, yet all remain connected by this immediately recognisable architecture. The Tank Solo offers an especially pure reading of it: straight lines, a dial without unnecessary complication, remarkable slimness and an almost perfect relationship between case and strap. It belongs to those objects whose modernity does not come from constantly searching for novelty, but from the accuracy of a design strong enough to travel through generations.

This W5200024 adds the distinctive warmth of 18-carat rose gold to that simplicity. Its construction deserves to be understood precisely: the upper case, its brancards and bezel are made from 750/1000 rose gold, while the solid caseback is stainless steel. The watch therefore combines the visual and tactile presence of a precious metal with an exceptionally slim and rational architecture. On the wrist, it does not read like a conventional two-tone watch with a metal bracelet; what one sees first is the soft light of rose gold surrounding the dial, followed naturally by leather extending between the brancards.

At approximately 31 mm high, 24.4 mm wide and only 5.6 mm thick, the Tank Solo also reminds us that wrist presence does not depend upon diameter alone. A rectangular watch occupies space differently from a round one. The brancards visually extend the case towards the strap and provide enough length for the watch to establish itself, while its restrained width preserves the distinctive elegance of a small Cartier. It slides beneath a cuff with remarkable ease and feels almost as though it has been placed upon the wrist rather than attached to it.

The silvered opaline dial is almost a lesson in composition. Large black Roman numerals immediately create the structure, the railway minute track organises the centre and two blued-steel sword hands introduce colour. Look closely at numeral X and one discovers the secret Cartier signature, discreetly incorporated into one of its strokes and long since established as one of the house’s familiar details. No date window, central seconds or additional display disturbs the geometry: two hands are enough.

This deliberate absence of complication gives the Tank Solo a quality that feels particularly relevant today. In an era when many watches appear compelled to accumulate functions and information in order to demonstrate value, the Tank takes the opposite approach. It returns to the most elementary purpose of a watch: telling the time. Sophistication consequently comes from proportion, metal, typography and quality of design, rather than from the number of components visible on the dial.

The blued sword-shaped hands play an essential part in this balance. Their blue changes subtly with the light, sometimes appearing almost black before suddenly revealing a brighter colour as the wrist moves. It is a characteristic Cartier detail, just like the Roman numerals and railway track. The elegance of the dial relies precisely upon these small contrasts: black numerals, silver background, rose-gold case and blue hands.

The beaded crown continues this conversation between function and decoration. It is set with a blue spinel cabochon that visually echoes the hands and provides a small point of colour at the side of the case, immediately associated with Cartier watches. Its practical role remains straightforward — setting the time — but its treatment reminds us that at Cartier even a functional control can become an essential part of the design.

The sapphire crystal protects the dial and provides durability consistent with a watch intended for regular wear. The Tank Solo is therefore not a delicate object to be reserved for exceptional occasions. Its rose gold naturally deserves more consideration than an entirely steel case, but its overall architecture, sapphire crystal and quartz movement make it perfectly suitable for everyday life.

Inside is the Cartier calibre 157, a compact Swiss Made quartz movement used by the house in several of its smaller shaped watches. It contains 4 jewels and its quartz crystal oscillates at 32,768 Hz. Unlike a mechanical movement, this frequency is not expressed in vibrations per hour and there is no wound power reserve: energy is supplied by a type 321 / SR616SW battery, while the highly regular oscillations of quartz provide the timekeeping reference.

Its display is deliberately limited to hours and minutes, entirely consistent with the design of this Tank. The absence of a seconds hand also gives the dial an almost surprising stillness: the watch indicates time without constantly displaying its passing. This characteristic contributes considerably to its elegance and makes it almost possible to forget that a mechanism is operating behind the dial.

Battery autonomy naturally depends upon the cell installed, its age and operating conditions and is normally measured in several years. With a pre-owned quartz watch, what matters is therefore not simply confirming that it runs; electrical consumption, the battery compartment and the absence of damage caused by an old cell must also be checked. These are precisely the elements inspected by the Mostra workshop when preparing the watch before sale.

This electronic architecture also makes genuine sense in a Tank only 5.6 mm thick. Quartz allows the case to retain exceptional slimness, and that slimness directly determines the elegance of the watch. A more voluminous movement would have required a different case and altered the subtle relationship between dial, brancards and wrist. Here, technology accepts invisibility in order to preserve the line.

Quartz also provides a pleasure of use that is sometimes underestimated in a collection. This Cartier can remain unworn for days or weeks and then be picked up and worn immediately. No winding, no calendar to correct and no stopped automatic movement to restart: simply put it on the wrist. For someone rotating several watches, this availability quickly becomes part of the appeal of the Tank Solo.

Its original water resistance was rated to 3 bar, or 30 metres. This specification should be understood for what it is: protection against accidental splashes and moisture, certainly not an aquatic vocation. On a leather-strapped watch from 2014, Mostra naturally recommends avoiding immersion. As with every pre-owned watch, an historical water-resistance figure can never in itself guarantee present-day resistance.

The presence of rose gold profoundly changes the relationship one has with this Tank Solo compared with the all-steel version. The watch remains discreet because of its size, yet the precious metal adds a light that reveals itself progressively rather than creating ostentation. This is especially true of rose gold, whose warmth combines naturally with leather and the silvered dial.

This association also explains the remarkable versatility of the W5200024. It can accompany very formal clothing, yet it requires no formal setting in order to work. With a white shirt, cashmere knitwear, jacket, dress or simply denim, its compact proportions and leather strap prevent it from ever becoming demonstrative. It belongs to that category of precious watches that can be worn every day without feeling like ceremonial jewellery.

Since its origins, the Tank has also possessed an exceptional ability to escape strict gender categories. Its proportions and numerous sizes have allowed it to appear on both men’s and women’s wrists for more than a century. This W5200024, through its restrained dimensions, is naturally most often considered a small women’s model, yet the history of the Tank reminds us that its identity has always depended far more upon style than upon rigid classification.

This also explains its extraordinary presence within twentieth-century culture. The Tank has appeared on the wrists of artists, writers, actors, political figures and creators from very different generations. More interestingly, it seems to have absorbed each of those worlds without ever losing its own character. Very few watches can move so naturally from Parisian elegance to an intellectual aesthetic, from formal clothing to something almost casual, without their design appearing out of place.

The Tank Solo possesses a particular quality in this respect. It retains the essential signatures of the great Cartier story while simplifying them sufficiently to become an exceptionally easy watch to live with. It does not attempt to reproduce exactly an historical Tank Louis Cartier, nor does it adopt the more sporting character of the Tank Française. It lies between those worlds, with a highly pure line that explains why it was for many years one of the most natural entry points into the Tank family.

With this W5200024 reference, however, rose gold moves the watch into a more precious register. The presence of precious metal, including the buckle when retained in its original Cartier configuration, brings the watch closer to the great classical Tank tradition while preserving the everyday simplicity of quartz. It is precisely this contrast that makes the watch so appealing today: a genuinely precious object whose daily use remains absolutely straightforward.

The year 2014 also gives this example considerable coherence with the period when the Tank Solo occupied an important position within the Cartier collection. It retains the pure language that made the generation so successful: slim proportions, traditional dial, absence of unnecessary complication and discreet presence of gold. More than a decade later, its design has barely aged, which is probably the strongest argument that can be made in favour of the Tank.

The presence of the original Cartier warranty card dated 2014 provides an additional advantage. It places the individual watch precisely within the context of its original sale and brings an element of traceability that becomes increasingly valuable as a watch grows older. A Tank Solo offered alone and another supplied with original documentation may share the same reference, yet they do not tell exactly the same story.

For a collector, that documentation becomes all the more interesting as the Tank currently enjoys renewed attention. The return of smaller dimensions, shaped watches and precious metals has placed these Cartier designs at the centre of a conversation from which they had, in reality, never disappeared. After years in which sports watches dominated the market, many enthusiasts are rediscovering the pleasure of a slim, elegant and instantly recognisable watch.

This W5200024 can therefore fulfil several roles. It can be a first important Cartier, an exceptionally elegant everyday watch, a piece chosen to mark an occasion or the complement to a collection already containing mechanical and sporting watches. In the latter case, its difference becomes its greatest attraction: after a Submariner, Speedmaster or Black Bay, placing a Tank on the wrist completely changes one’s relationship with both time and object.

Choosing this 2014 Cartier Tank Solo W5200024 from Mostra means benefiting from more than forty years of experience in collectible watches, our highly regarded integrated watchmaking workshop in Aix-en-Provence and one of the largest selections of high-end pre-owned watches in the South of France. Shaped Cartier watches require a particular kind of assessment: case geometry, preservation of the brancards, condition of the rose-gold surfaces, dial, hands, crown, sapphire crystal and consistency of the buckle all contribute to the true quality of an individual example.

On this quartz watch, our inspection also covers the Cartier calibre 157, its electrical consumption, power supply, operation, hand-setting system and overall movement condition. The authenticity and consistency of the warranty card are also examined. The objective is not simply to offer a Tank that runs, but a watch whose complete configuration has been assessed by a workshop accustomed to collectible watches.

Mostra’s verified customer reviews carry a 5-star rating, reflecting a relationship based upon expertise, transparency and support after the sale. This Cartier is supplied with its original warranty card dated 2014, a Mostra Certificate of Authenticity and the Mostra 3-year warranty. Its future owner therefore acquires a rose-gold and steel Tank Solo whose origin, consistency and operation have been inspected, together with access to a specialist capable of supporting the watch over time.

The Cartier Tank Solo W5200024 ultimately captures an idea that remains relatively rare in watchmaking: a watch can become precious without becoming imposing, luxurious without becoming demonstrative and modern without altering a design conceived more than a century ago. Its rose gold provides warmth, its steel back rationality, its Roman numerals the memory of Cartier and its blue hands the small flash of colour required to bring the composition to life. A watch born from a 1917 design, interpreted with the simplicity of the Tank Solo and worn in 2014 exactly as it can still be worn today: because certain forms succeed in travelling through time precisely by refusing to chase it.