Case #741 — Tag Heuer TAG Heuer Aquaracer Calibre 5 Titanium Ref. WAY218A.FC6362

Case #741 — TAG Heuer Aquaracer 300M Calibre 5 Titanium "Blacked-Out"

Ref. WAY218A.FC6362

Status: Available

Condition: Very Good Pre-Owned

Scope: Watch with Presentation Box

Year: Unknown

🔎 Case Notes

Most dive watches announce themselves in steel. This one does the opposite. The WAY218A.FC6362 is the fully darkened titanium execution of the Aquaracer 300M Calibre 5 — a 41 mm case in black titanium-carbide-coated Grade 2 titanium, topped with a black ceramic unidirectional dive bezel and a black sunray-brushed dial with applied indices. The result is a diver that reads as a single dark mass at arm's length, with the Aquaracer's signature vertical-brushed dial texture only revealing itself when light hits it directly.

The practical headline is weight. Titanium carries roughly half the density of stainless steel, and in a 41 mm case rated to 300 metres that difference is immediately obvious on the wrist. This is a serious dive-specified watch that wears like a far lighter one.

Inside is the Calibre 5 automatic, beating at 28,800 vph with a 38-hour power reserve and displaying hours, minutes, seconds and date. Winding and setting are conventional; the crown screws down, as the depth rating requires.

This example is graded Very Good Pre-Owned and carries no specific condition notes from our inspection. It is presented on a leather strap with a deployant/folding clasp, sized to fit an approximately 8-inch wrist. Buyers should note that this reference was delivered from the factory on a black nylon strap; we make no claim that the fitted leather strap is an original TAG Heuer component. It is accompanied by its presentation box only — no papers, cards or service documentation are included.

🕰️ The Evidence

• Reference: WAY218A.FC6362
• Model / Collection: TAG Heuer Aquaracer 300M Calibre 5, 41 mm
• Year: Unknown
• Case: Grade 2 titanium with black titanium-carbide coating
• Case Diameter: 41 mm
• Thickness: Approximately 12 mm
• Dial: Black, sunray-brushed, applied indices
• Crystal: Sapphire
• Bezel: Unidirectional rotating dive bezel, black ceramic
• Crown: Screw-down
• Caseback: Solid
• Movement: TAG Heuer Calibre 5 Automatic
• Movement Type: Automatic, normal winding
• Frequency: 28,800 vph (4 Hz)
• Power Reserve: 38 hours
• Functions: Hours, minutes, seconds, date
• Water Resistance: 300 metres
• Strap: Leather strap (not the nylon strap of the original factory configuration)
• Clasp: Deployant / folding clasp
• Fit: Approximately 8 inches
• Condition: Very Good Pre-Owned
• Included: Presentation box

🌟 Collector Provenance

The Aquaracer line is TAG Heuer's longest-running modern dive family, and the Calibre 5 300M generation represented its volume core for most of the 2010s — the automatic, date-only, 41 mm interpretation that sat between the quartz Aquaracers below it and the Calibre 16 chronographs above. Within that generation, the titanium references were always the outliers: a small subset of a very large family, produced alongside dozens of steel variants that far outnumbered them.

The WAY218A sits at the furthest end of that subset. Rather than offering titanium in its natural grey, TAG Heuer coated it black, then matched the bezel in black ceramic and the dial in black sunray — a monochrome treatment that was considerably less common on the secondary market than the brushed-steel, blue-dial Aquaracers most buyers picture when the name is mentioned.

Context also matters here because the generation has ended. In 2021 TAG Heuer comprehensively redesigned the line as the Aquaracer Professional 300, revising the case profile, bezel grip, dial architecture and bracelet system. This reference is listed as discontinued by TAG Heuer. That makes the WAY218A a closed chapter — the last expression of the older Aquaracer design language, with the wider bezel knurling and pronounced case flanks that defined the model for well over a decade.

🌟 Technical Provenance

Titanium is a difficult material to finish attractively and an easy one to scratch, which is why so many brands either avoid it or leave it raw. The approach used here — titanium carbide coating over a Grade 2 titanium case — addresses both problems at once: it delivers the uniform matte-black surface the design calls for while adding a hard, wear-resistant outer layer to a base metal that is otherwise comparatively soft. The screw-in crown and the deployment buckle supplied with the reference carry the same black titanium-carbide treatment, keeping the finish consistent across the components most exposed to handling.

The bezel is a separate engineering decision. Ceramic does not fade, does not develop the dulled edges that aluminium inserts acquire, and resists the scuffing that is the usual giveaway on a well-worn diver. Paired with a coated case, it means the two surfaces most likely to show a watch's age on an ordinary steel diver are the two most resistant to it here.

The movement is the pragmatic counterweight to all of this. The Calibre 5 is an automatic with a 38-hour power reserve running at 4 Hz, offering hours, minutes, seconds and date — a workhorse automatic architecture of the type widely used across the Swiss industry, familiar to any competent watchmaker and straightforward to service. No proprietary escapement, no scarce components, no complications to complicate ownership.

🧾 From the Case File

At 41 mm across and roughly 12 mm thick, this is a dive watch sized for actual wear rather than display. The dimensions are conventional; the mass is not. Titanium at this size produces a watch that largely disappears under a shirt cuff and stays put through a working day without the top-heaviness that affects steel divers of similar proportions — particularly relevant on a larger wrist, where a steel equivalent accumulates weight quickly.

The configuration here is also unusually easy to live with. Black-on-black on leather reads far closer to a dress-casual watch than a nylon-strapped diver does, and the deployant clasp means the strap is never threaded through a buckle or stressed at the tail. As delivered, it is sized for an approximately 8-inch wrist. For a buyer who wants the capability of a 300-metre dive watch without broadcasting it, the darkened case and ceramic bezel do a great deal of quiet work.

Two further points of practical value. First, the finish: coated titanium and ceramic age better than brushed steel and aluminium, which is worth considering on any pre-owned purchase. Second, availability — the reference is discontinued, and the pre-owned market is the only route to this specific titanium execution. The alternative is a current Aquaracer Professional 300, which is a genuinely different watch in design, proportion and price.

Transparency on scope: this is a watch and presentation box only. No papers, warranty card or service documentation accompany it, and we make no representation about the fitted leather strap's origin or about current timekeeping performance, which we have not measured.

🗝️ BST Verdict

A blacked-out titanium Aquaracer is a more specific proposition than its steel siblings — lighter on the wrist, harder-wearing at the surfaces that matter, and considerably more discreet than a dive watch rated to 300 metres has any right to be.

Graded Very Good Pre-Owned with no condition notes recorded, supplied in its presentation box and fitted to an approximately 8-inch wrist, this is a straightforward, well-engineered automatic diver from a now-closed generation of the Aquaracer line.

👉 Every case deserves a closer look.