Breitling · Colt

Strap for Colt 36 Pearl Diamond / 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
ReferenceA74389111A1X1 (aka: A7438911/A771/216X/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 A74389111A1X1 (aka: A7438911/A771/216X/A16BA.1)

Selected for the 18 mm lug width

All 18 mm straps →

The Colt A74389111A1X1 (aka: A7438911/A771/216X/A16BA.1), seen from the bench

The Colt is a Breitling sports watch equipped with the B74 caliber, offering hour, minute, second and date indications with chronometer certification. The reference A74389111A1X1 has 18mm lugs. The movement ensures the essential functions with the precision required by the chronometer certification.

Frequently asked questions

What is the lug width of the Breitling Colt A74389111A1X1?

The Breitling Colt A74389111A1X1 has a lug width of 18mm. This measurement is taken with a digital calliper between the inner sides of the case lugs at the point where the strap attaches. Any strap with an 18mm fitting is compatible with this reference.

What is the best strap for the Breitling Colt A74389111A1X1?

For the Breitling Colt A74389111A1X1, with its 36mm brushed stainless steel case, the most suitable options are vegetable-tanned calf leather (for versatility and natural patina development), matte alligator (for a more formal character), shell cordovan (for exceptional durability and a silky sheen), or nylon NATO for everyday sporting use.

How do I change the strap on a Breitling Colt A74389111A1X1?

To replace the strap on the Breitling Colt A74389111A1X1, you will need a springbar tool. Compress the springbar ends within the lugs and slide the strap free. The process takes approximately two minutes and can be performed independently with the correct tools, or entrusted to a watchmaker or specialist atelier.

Are there aftermarket straps compatible with the Breitling Colt A74389111A1X1?

Yes, the Breitling Colt A74389111A1X1 features a standard 18mm lug width, which is widely supported by quality aftermarket strap manufacturers. It is important to ensure the springbars are the correct diameter for Breitling's lugs. Milanostraps.it offers a curated selection of handcrafted 18mm straps compatible with this reference.

How long does a leather strap last on a Breitling Colt A74389111A1X1?

A quality handcrafted leather strap on a Breitling Colt A74389111A1X1 typically lasts between two and five years with daily wear, depending on the material and level of care. Vegetable-tanned calf and shell cordovan offer the greatest longevity. Prolonged exposure to water and perspiration should be avoided, and an occasional application of neutral leather conditioner will help preserve the fibres.

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