Breitling · Colt

Strap for Colt Quartz Stratus Silver / Bracelet

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
ReferenceA74388111G1A1 (aka: A7438811/G792/173A)
FamilyColt
MovementBreitling caliber B74 hours, minutes, seconds | date | chronometer
Year2015
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 A74388111G1A1 (aka: A7438811/G792/173A)

Selected for the 22 mm lug width · workshop selection

All 22 mm straps →

The Colt A74388111G1A1 (aka: A7438811/G792/173A), seen from the bench

The Breitling Colt A74388111G1A1 (also referenced as A7438811/G792/173A) is a professional tool watch with a 44mm stainless steel case and 22mm lug width. Powered by the COSC-certified Breitling B74 calibre, it delivers ±4 seconds per day precision with hours, minutes, seconds and date display. The unidirectional steel bezel and luminescent indices ensure high legibility in extreme conditions, while the screw-down caseback guarantees water resistance for field operations.

Frequently asked questions

What is the lug width of the Breitling Colt A74388111G1A1?

The lug width of the Breitling Colt A74388111G1A1 is 22mm. This standard measurement allows fitting a wide range of aftermarket straps without adapters, whether in leather, nylon NATO or technical rubber.

What is the best strap for the Breitling Colt A74388111G1A1?

The ideal choice depends on intended use. For casual and sport contexts, a nylon NATO or vulcanised rubber strap respects the tool watch heritage of the Colt. For formal occasions, a vegetable-tanned alligator or box calf leather strap with a deployant clasp complements the COSC chronometer credentials and overall build quality.

How do you change the strap on a Breitling Colt A74388111G1A1?

The strap is removed using a springbar tool, which compresses the spring bars housed within the 22mm lug slots. The procedure takes approximately two minutes and does not require professional equipment. It is advisable to work on a soft cloth to protect the case and crystal throughout.

Are there compatible aftermarket straps for the Breitling Colt A74388111G1A1?

Yes, any strap with a 22mm attachment width is compatible with the Breitling Colt A74388111G1A1. Milano Straps offers a curated selection of handcrafted leather, NATO and rubber straps available in the 22mm lug width, all accessible online with prompt dispatch.

How long does a leather strap last on a Breitling Colt A74388111G1A1?

Longevity depends on leather type, care and daily wear. A quality vegetable-tanned calf leather strap worn regularly retains its structure and appearance for 2 to 4 years. Alligator leather, due to its denser fibre structure, tends to last longer while developing a distinctive patina. Frequent exposure to water or perspiration significantly reduces strap life; in aquatic environments, rubber or NATO materials are strongly recommended.

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