TAG Heuer · Aquaracer

Strap for Aquaracer Professional 300 GMT 42 Stainless Steel / Blue / Rubber

Takes 20 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width20 mm
Case diameter42 mm
ReferenceWBP5114.FT6259
FamilyAquaracer
MovementTAG Heuer caliber TH31-03 COSC hours, minutes, seconds, Additional 24 hours Hand (adjustable) | date | chronometer
Year2024
CaseCeramic, Stainless Steel

Spring bar

Swiss Standard universal spring bars

The right category for this model · 316L steel, all lug widths 13–26 mm

Straps for the Aquaracer WBP5114.FT6259

Selected for the 20 mm lug width · workshop selection

All 20 mm straps →

The Aquaracer WBP5114.FT6259, seen from the bench

The TAG Heuer Aquaracer Professional 300 GMT 42 WBP5114.FT6259 is a stainless steel and ceramic sports watch with a 42mm case and 20mm lug width. Powered by the TAG Heuer TH31-03 chronometer-certified movement, it features a 24-hour GMT complication with independent adjustment, a deep blue dial with anti-reflective treatment, and a ceramic crown. Designed for underwater use and international travel, this model combines technical precision with marine durability.

Frequently asked questions

What is the lug width of the TAG Heuer Aquaracer WBP5114.FT6259?

The lug width of the TAG Heuer Aquaracer WBP5114.FT6259 is 20 millimetres. This measurement is crucial for aftermarket strap compatibility. To verify it correctly, use a digital calliper positioned perpendicular to the case at the level of the spring bar seat, measuring between the inner shoulders of the lugs and excluding any external protrusions.

What is the best strap for the TAG Heuer Aquaracer WBP5114.FT6259?

There is no single answer, as it depends on usage and personal preference. For formal or office contexts, black alligator with vegetable tanning is ideal, as the natural grain of the leather does not compete with the case textures. For swimming and snorkelling, an FKM rubber strap with titanium bars maintains pure functionality. Burgundy calf leather offers initial elasticity and a softer patina. A technical Cordura NATO strap represents a versatile compromise between formality and everyday practicality.

How do I change the strap on my TAG Heuer Aquaracer WBP5114.FT6259?

Strap replacement is a straightforward procedure requiring a spring bar tool. Position the watch on a stable surface with the case facing upward. Insert the forked tip of the tool into the spring bar access hole and gently lift until the spring releases. Once the bar is extracted, the strap detaches. To fit the new strap, align the lugs with the case and reinsert the bar with controlled pressure until you feel the click of engagement. Verify that the bar is fully seated before wearing the watch.

Can I use an aftermarket strap compatible with the TAG Heuer Aquaracer WBP5114.FT6259?

Yes, absolutely. Any strap with a 20-millimetre lug width is compatible with the WBP5114.FT6259. On milanostraps.it, you will find a selection of artisanal 20mm straps in leather, alligator and shell cordovan, customisable in sizing, initials and stitching thread choice. Artisanal quality guarantees construction that does not damage the watch and longevity superior to industrially produced straps.

How long does a leather strap last on the TAG Heuer Aquaracer WBP5114.FT6259?

The lifespan of a leather strap depends on usage intensity and tanning type. A high-quality alligator or calf strap with vegetable tanning can last 5-7 years with moderate daily use, developing a patina that increases aesthetic value over time. Shell cordovan straps, being denser and more resinous, tend to last longer (7-10 years). Constant water exposure significantly reduces leather longevity: if you regularly swim or dive, consider using an FKM rubber strap for those specific occasions, reserving leather for periods of land-based use.

The next step

The right strap isn't chosen. It is built, together.

From the atelier appointment to delivery, every step is made for those who know that things done well take time. Rare leathers, one piece at a time, eighteen months of warranty.

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Casati Milano · Via XX Settembre 15, Milan · by appointment only