Breitling · Colt

Strap for Colt 36 Stratus Silver / Sahara / Folding

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/G803/249X/A16D.1
FamilyColt
MovementBreitling caliber 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

The Colt A7438911/G803/249X/A16D.1, seen from the bench

The Breitling Colt mounts the B74 chronometer-certified caliber with hour, minute, second and date functions. The model features 18mm lugs and reference A7438911/G803/249X/A16D.1. The watch is part of the Swiss brand's sports collection dedicated to precision instruments.

Frequently asked questions

What is the lug width of the Breitling Colt A7438911/G803/249X/A16D.1?

The lug width of the Breitling Colt A7438911/G803/249X/A16D.1 is 18mm. This is the measurement required when selecting a compatible aftermarket strap. It should be verified using a digital calliper, measuring the internal distance between the two lugs at the point where the spring bar meets the case.

What is the best strap for the Breitling Colt 36mm A7438911/G803/249X/A16D.1?

For the Colt 36mm, we recommend a vegetable-tanned calf leather strap for daily wear, which develops a natural patina over time, or a matte bombé-grain alligator strap for formal occasions. A technical nylon NATO strap is ideal for sporting or aquatic use, while a vulcanised rubber strap provides full water resistance. The correct width is 18mm at the keeper.

How do you change the strap on a Breitling Colt A7438911/G803/249X/A16D.1?

To replace the strap on the Breitling Colt A7438911/G803/249X/A16D.1, you will need a fine-tipped spring bar tool. Insert the tool into the notch between the lug and the spring bar, compress the bar until it releases, and slide the strap free. The operation does not require opening the case and only needs a spring bar tool. It is advisable to work on a soft surface to avoid scratching the case.

Are there aftermarket straps compatible with the Breitling Colt A7438911/G803/249X/A16D.1?

Yes, the Breitling Colt A7438911/G803/249X/A16D.1 uses a standard 18mm lug width, which means the range of compatible aftermarket straps is extensive. Milanostraps.it offers a curated selection of handcrafted leather, alligator, NATO and rubber straps in 18mm, all compatible with this model's lugs without the need for any adaptor.

How long does a leather strap last on a Breitling Colt A7438911/G803/249X/A16D.1?

The lifespan of a leather strap depends on the material, the craftsmanship and daily care. A quality vegetable-tanned calf strap, kept away from prolonged water exposure and conditioned periodically with a natural leather balm, will typically last between 2 and 4 years with daily wear. Shell cordovan, being denser and more compact, can exceed 5 years. Alligator leather fares equally well provided it is not subjected to systematic moisture. 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.

Request an appointment →

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