Breitling · Colt

Strap for Colt 44 Silver / Calf

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.G743.105X
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

Straps for the Colt A7438710.G743.105X

Selected for the 22 mm lug width · workshop selection

All 22 mm straps →

The Colt A7438710.G743.105X, seen from the bench

The Breitling Colt A7438710.G743.105X is a 44mm stainless steel tool watch developed for demanding aviation and military environments. Powered by the Breitling B74 manufacture movement certified COSC with a precision of +4/-6 seconds per day, it features an absolutely legible dial with hours, minutes, seconds and date display. The robust 316L steel case, functional bezel and stripped-down military aesthetic prioritize readability and durability for professional use. Lug width is 22mm.

Frequently asked questions

What is the lug width of the Breitling Colt A7438710.G743.105X?

The Breitling Colt A7438710.G743.105X features a lug width of 22mm. This measurement should be taken with a digital calliper across the internal distance between the two lugs, at the point where the spring bar sits. A 22mm strap will fit precisely without lateral play or excessive force.

What is the best strap for the Breitling Colt A7438710.G743.105X?

Given the military and aeronautical heritage of the Colt, the most coherent strap options are: premium NATO nylon for historical accuracy, vegetable-tanned alligator for a formal upgrade, or grain calf leather in military green or tobacco brown for a tactical-elegant aesthetic. Vulcanised rubber is recommended for intensive sports use. All straps must be sized at 22mm lug width.

How do you change the strap on a Breitling Colt A7438710.G743.105X?

The strap is replaced by removing the spring bars connecting the strap to the case lugs. Using a dedicated springbar tool, compress the spring bar and slide the strap free. The operation does not require professional tools but should be performed carefully to avoid scratching the stainless steel case. Work on a soft surface and use a tool with a plastic-tipped fork where possible.

Are there aftermarket straps compatible with the Breitling Colt A7438710.G743.105X?

Yes. Any strap with a 22mm lug width is technically compatible with the Breitling Colt A7438710.G743.105X. Milanostraps.it offers a curated selection of handcrafted 22mm straps in various materials and finishes, manufactured in Italy using selected leathers. The standard 22/20mm taper ensures compatibility with most aftermarket buckles and deployant clasps.

How long does a leather strap last on a Breitling Colt A7438710.G743.105X?

Longevity depends on material and usage. A quality calf leather strap, regularly conditioned and kept away from prolonged sweat and water exposure, can last between 2 and 4 years with daily wear. An alligator strap in vegetable tanning, owing to the higher fibre density, can comfortably reach 5 to 7 years. Milanostraps.it provides an 18-month guarantee against manufacturing defects on all Casati Milano 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.

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