Breitling · Colt

Strap for Colt 36 Stratus Silver / 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/G803/216X/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/G803/216X/A16BA.1

Selected for the 18 mm lug width

All 18 mm straps →

The Colt A7438911/G803/216X/A16BA.1, seen from the bench

The Breitling Colt A7438911/G803/216X/A16BA.1 is a 36 mm stainless steel tool watch from the Colt family, conceived in the 1980s for pilots and maritime professionals. It features the B74 automatic movement, COSC chronometer certified, with central hours, minutes, seconds and date display. The case combines satin and polished finishing with an anti-reflective sapphire crystal. The 18 mm lug width is a precise specification requiring compatible straps for proper fit and visual balance.

Frequently asked questions

What is the lug width of the Breitling Colt A7438911/G803/216X/A16BA.1?

The lug width of the Breitling Colt A7438911/G803/216X/A16BA.1 is 18 mm. This measurement is dictated by the geometry of the 36 mm case and is binding for the correct selection of a replacement strap.

What is the best strap for the Breitling Colt A7438911/G803/216X/A16BA.1?

The ideal choice depends on intended use. For formal settings, a vegetable-tanned calf leather or regular-grain alligator strap complements the restrained dial. For sport or outdoor use, a ballistic nylon NATO or vulcanised rubber strap is the most practical option. The attachment width is 18 mm in all cases.

How do I change the strap on the Breitling Colt A7438911/G803/216X/A16BA.1?

The strap is removed using a spring bar tool (a forked-tip instrument) that compresses the ends of the spring bar housed within the lugs. Care must be taken to avoid scratching the case: it is advisable to protect the lugs with PTFE tape or to entrust the operation to a watchmaker for the first few attempts.

Are there aftermarket straps compatible with the Breitling Colt A7438911/G803/216X/A16BA.1?

Yes. Any strap with an 18 mm attachment width and standard spring bars is compatible. Milanostraps.it offers a curated selection of handcrafted 18 mm straps in various materials, all manufactured to verified dimensional specifications ensuring a proper fit on the Colt's lugs.

How long does a leather strap last on a Breitling Colt A7438911/G803/216X/A16BA.1?

Longevity depends on the material and maintenance. A quality vegetable-tanned calf strap worn daily and kept away from excessive moisture typically lasts 18 to 24 months. Shell cordovan, being denser and less porous, can exceed three years. Regular exposure to humidity significantly reduces the service life of any leather strap.

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