Breitling · Colt

Strap for Colt 44 Blue / Rubber

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
ReferenceA7438710.C849.145S
FamilyColt
MovementBreitling caliber B74 hours, minutes, seconds | date | chronometer
Year2011 - 2014
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 A7438710.C849.145S

Selected for the 22 mm lug width · workshop selection

All 22 mm straps →

The Colt A7438710.C849.145S, seen from the bench

The Breitling Colt A7438710.C849.145S is a professional instrument watch from the Colt family, born in the 1980s as a response to demands for robustness and reliability in extreme operative conditions. It features a 44mm stainless steel case housing the B74 caliber, a COSC-certified chronometer movement with precision of -4/+6 seconds per day. The strap lug width is 22mm, compatible with a wide range of aftermarket straps designed for professional sports watches.

Frequently asked questions

What is the lug width of the Breitling Colt A7438710.C849.145S?

The Breitling Colt A7438710.C849.145S has a lug width of 22mm. This measurement is taken with a digital calliper positioned internally between the lugs at their narrowest point. A 22mm strap ensures a precise fit with no lateral play.

What is the best strap for the Breitling Colt A7438710.C849.145S?

For the Colt with its 44mm stainless steel case, a vegetable-tanned calf leather in tobacco brown or an alligator strap with hornback grain in black or anthracite are the most coherent choices. For sporting or aquatic use, a ballistic nylon NATO or vulcanised rubber strap offers durability and practicality.

How do I change the strap on a Breitling Colt A7438710.C849.145S?

Strap replacement on the Colt requires a flat-tip or hook-style spring bar tool, carefully inserted between the lug and the spring bar. Work on a soft surface to protect the brushed steel finish. With a standard 22mm lug width, any compatible aftermarket strap can be fitted in seconds.

Are there aftermarket straps compatible with the Breitling Colt A7438710.C849.145S?

Yes, the Breitling Colt A7438710.C849.145S uses standard 22mm spring bars, fully compatible with the entire range of aftermarket straps available on Milano Straps. Alligator, calf leather, shell cordovan, NATO and rubber options are all available in this width.

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

The lifespan of a leather strap depends on the material and conditions of use. A vegetable-tanned calf strap, properly maintained, will last between two and four years with daily wear. Shell cordovan, owing to its dense fibre structure, can exceed five years while retaining a clean edge. Prolonged exposure to water and perspiration accelerates deterioration; for wet environments, a NATO or rubber strap is preferable.

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