Breitling · Colt

Strap for Colt Chronograph Volcano Black / Rubber / Pin

Takes 22 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width22 mm
Case diameter44 mm
ReferenceA7338811/BD43/152S/A20S.1
FamilyColt
MovementBreitling caliber B73 Foudroyante seconds, minutes, small seconds | date | Chronograph | chronometer
Year2014
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 Colt A7338811/BD43/152S/A20S.1

Selected for the 22 mm lug width · workshop selection

All 22 mm straps →

The Colt A7338811/BD43/152S/A20S.1, seen from the bench

The Breitling Colt Chronograph Volcano Black A7338811/BD43/152S/A20S.1 is a 44mm stainless steel professional chronograph certified COSC. It features the B73 caliber with foudroyante and traditional chronograph, small seconds, minutes, and date display, guaranteeing ±4 seconds per day precision. The lug width is 22mm, compatible with a wide range of aftermarket straps. Designed for tactical operations with screw-down crown and threaded caseback, this tool-watch prioritizes functionality and durability.

Frequently asked questions

What is the lug width of the Breitling Colt A7338811/BD43/152S/A20S.1?

The lug width of the Breitling Colt A7338811/BD43/152S/A20S.1 is 22mm. This measurement is taken between the two lugs using a digital calliper, measuring the internal distance at the narrowest point. The 22mm standard ensures broad compatibility with high-quality aftermarket straps available on milanostraps.it.

What is the best strap for the Breitling Colt A7338811/BD43/152S/A20S.1?

The ideal choice depends on the intended use. For formal settings, a vegetable-tanned alligator strap with Hornback grain complements the steel case without undermining the tool-watch character of the model. For sport or intensive daily wear, a premium 22mm ballistic nylon NATO strap with a steel keeper is the most functional and durable option. Vegetable-tanned calfskin offers the best balance between elegance and everyday resilience.

How do you change the strap on a Breitling Colt A7338811/BD43/152S/A20S.1?

Strap replacement is carried out via the spring bars located between the case lugs. A dedicated spring bar tool — or a thin flat-tipped implement — is used to compress the spring bar and release the existing strap. The operation requires no professional tools and can be performed independently in a few minutes, taking care not to scratch the case surface.

Are there aftermarket straps compatible with the Breitling Colt A7338811/BD43/152S/A20S.1?

Yes. Any strap with a 22mm lug width is technically compatible with the Breitling Colt A7338811/BD43/152S/A20S.1. On milanostraps.it you will find handcrafted Italian straps in alligator, vegetable-tanned calfskin, shell cordovan and NATO fabric, all supplied with spring bars and available with a standard buckle or steel deployant clasp.

How long does a leather strap last on a Breitling Colt worn daily?

A quality leather strap — particularly in vegetable-tanned leather or alligator — worn daily under moderate conditions will typically last between 2 and 4 years. Longevity depends on exposure to perspiration, water and direct heat. Given the Breitling Colt's water resistance, rubber or NATO straps are often preferred for intensive use, with leather reserved for more controlled environments. Casati Milano offers an 18-month guarantee against manufacturing defects on all handcrafted straps.

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