TAG Heuer · Aquaracer

Strap for Aquaracer 300M Calibre 16 Day-Date COSC Stainless Steel / Black / Bracelet

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

Lug width20 mm
Case diameter43 mm
ReferenceCAF5010.BA0815 (aka: CAF5010BA0815, CAF5010)
FamilyAquaracer
MovementTAG Heuer caliber 16 Day Date hours, minutes, small seconds | date, day | Chronograph
CaseStainless 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 CAF5010.BA0815 (aka: CAF5010BA0815, CAF5010)

Selected for the 20 mm lug width · workshop selection

All 20 mm straps →

The Aquaracer CAF5010.BA0815 (aka: CAF5010BA0815, CAF5010), seen from the bench

The TAG Heuer Aquaracer CAF5010.BA0815 is a professional dive watch from the Aquaracer collection, featuring a 43mm stainless steel case with unidirectional bezel and ceramic insert. It is powered by the TAG Heuer Calibre 16 automatic movement with integrated chronograph, displaying hours, minutes, seconds, date and day. The lug width measures 20mm. Water resistant to 300 metres, this instrument combines functionality and durability for recreational diving and snorkelling.

Frequently asked questions

What is the lug width of the TAG Heuer Aquaracer CAF5010.BA0815?

The TAG Heuer Aquaracer CAF5010.BA0815 features a lug width of 20 millimetres. This measurement represents the distance between the inner shoulders of the lug—the attachment points on the case. It is the critical parameter for selecting a compatible strap.

Which strap is recommended for the TAG Heuer Aquaracer CAF5010.BA0815?

The TAG Heuer Aquaracer CAF5010.BA0815 is a sports-professional instrument: alligator straps in dark brown impart restrained elegance; vegetable-tanned calf develops patina over time; NATO or canvas maintain authentic maritime character; vulcanised rubber ensures maximum resistance in wet environments. Your choice depends upon the equilibrium between aesthetics and use context.

How do you change the strap on a TAG Heuer Aquaracer CAF5010.BA0815?

Strap replacement requires basic tools: a springbar tool or light-duty tweezers to extract the attachment pins. Position the watch upon a stable surface, remove the pin from the lug shoulder using controlled movements, withdraw the old strap, align the new one with the case lugs, and reinsert the pin. If uncertain, consult a watchmaker or the Casati Milano atelier.

Which aftermarket strap is compatible with the TAG Heuer Aquaracer CAF5010.BA0815?

Any strap with a 20-millimetre lug width is mechanically compatible with the CAF5010.BA0815. Milano Straps manufactures bespoke artisanal straps in alligator, calf, shell cordovan, NATO canvas and rubber, with customisation of colour, length and stitching thread according to your specific preferences.

What is the lifespan of a leather strap on a TAG Heuer Aquaracer CAF5010.BA0815?

A leather strap's lifespan depends upon material and usage patterns. Vegetable-tanned alligator endures 3–5 years in regular daily wear, developing characteristic patina. Softer calf has slightly shorter lifespan. The Casati Milano atelier provides an 18-month guarantee and recommends rotating between multiple straps to extend functional life. Rubber, when properly maintained, exceeds a decade of service.

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