Breitling · Colt
Strap for Colt 36 Pearl Diamond / Sahara / Folding
Takes 18 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.
Lug width
The Colt A7438911/A771/257X/A16D.1, seen from the bench
Frequently asked questions
What is the lug width of the Breitling Colt A7438911/A771/257X/A16D.1?
The lug width of the Breitling Colt A7438911/A771/257X/A16D.1 is 18mm. This measurement is taken with a digital calliper positioned between the lugs at the springbar attachment point, and is essential for selecting a perfectly compatible aftermarket strap.
What is the best strap for the Breitling Colt 36mm?
The best strap for the Breitling Colt 36mm depends on the intended context. A vegetable-tanned calfskin strap develops an authentic patina over time, complementing the tool watch character of the model. An opaque alligator strap shifts the aesthetic towards more formal territory, whilst a ballistic nylon NATO strap honours its military origins.
How do you change the strap on the Breitling Colt A7438911/A771/257X/A16D.1?
To replace the strap, use a dedicated spring bar tool or angled watchmaker's screwdriver to release the springbars between the lugs. Work on a soft surface to avoid scratching the stainless steel case. Standard 18mm springbars are compatible with the vast majority of aftermarket straps available for this reference.
Are there aftermarket straps compatible with the Breitling Colt A7438911/A771/257X/A16D.1?
Yes, the Breitling Colt A7438911/A771/257X/A16D.1 uses standard 18mm springbars, making it compatible with a wide range of aftermarket straps. Milano Straps offers handcrafted straps in vegetable-tanned leather, alligator, NATO nylon and rubber, all made specifically for 18mm lugs, with steel buckles or deployant clasps.
How long does a leather strap last on the Breitling Colt?
The lifespan of a leather strap depends on the quality of the tanning process, daily use and maintenance. A high-quality vegetable-tanned artisan strap, worn regularly but kept away from water, typically lasts between 3 and 5 years before showing structural fatigue. Avoiding prolonged exposure to perspiration, rain and heat sources will significantly extend its service life.
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
