Breitling · Colt

Strap for Colt 36 Volcano Black / Sahara / Pin

Takes 18 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width18 mm
Case diameter36 mm
ReferenceA7438911/BD82/215X/A16BA.1
FamilyColt
MovementBreitling caliber B74 hours, minutes, seconds | date | chronometer
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 A7438911/BD82/215X/A16BA.1

Selected for the 18 mm lug width

All 18 mm straps →

The Colt A7438911/BD82/215X/A16BA.1, seen from the bench

The Breitling Colt A7438911/BD82/215X/A16BA.1 is a 36mm stainless steel professional aviator watch featuring the caliber B74, an automatic movement certified chronometer by COSC with precision of -4/+6 seconds per day. The model maintains a functional design with clean dial and lugs proportioned for medium and slender wrists. Lug width is 18mm, compatible with standard aftermarket straps of this size, preferably with straight or tapered ends to suit the case profile.

Frequently asked questions

What is the lug width of the Breitling Colt A7438911/BD82/215X/A16BA.1?

The Breitling Colt A7438911/BD82/215X/A16BA.1 has an 18mm lug width. This measurement is taken with a digital calliper placed between the two lugs at their narrowest point. Any aftermarket strap with straight or slightly tapered ends in 18mm width is compatible with this reference.

What is the best strap for the Breitling Colt 36mm?

For the stainless steel Colt 36mm, a vegetable-tanned calf leather strap is the most coherent choice given the watch's instrument-oriented identity. Matt alligator suits formal contexts, nylon NATO straps are ideal for everyday dynamic use, and vulcanised rubber works well in sporting environments. A stainless steel deployant clasp is recommended to preserve the strap's geometry over time.

How do I change the strap on the Breitling Colt A7438911/BD82/215X/A16BA.1?

Strap replacement requires a fine-tipped spring bar tool inserted into the lug slots to release the 18mm spring bars. Work on a soft surface to protect the case finish. The Colt 36 uses standard spring bars — no proprietary tools are required — though entrusting the operation to a watchmaker or experienced technician is advisable to avoid scratching the brushed steel case.

Are there aftermarket straps compatible with the Breitling Colt 36?

Yes, any aftermarket strap with an 18mm lug width is compatible with the Breitling Colt 36. Milanostraps.it offers a curated selection of 18mm leather, NATO and rubber straps, all handcrafted and compatible with this model. Atelier Casati Milano also provides bespoke strap-making services with direct leather selection in the Milanese atelier.

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

Longevity depends on the material and conditions of use. A vegetable-tanned calf strap worn regularly typically lasts 2 to 4 years. Shell cordovan often exceeds 5 years owing to its dense fibre structure. Alligator, when properly conditioned, offers comparable durability. Water and perspiration are the primary causes of degradation; a deployant clasp reduces repeated flexing and significantly extends the strap's useful life.

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