Breitling · Colt

Strap for Colt 36 Diamond / Pearl / Bracelet

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
ReferenceA7438953.A772.178A
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

The Colt A7438953.A772.178A, seen from the bench

The Colt represents Breitling's sporty line characterized by essential functionality and robustness. It mounts the B74 caliber with hour, minute, second and date functions, certified chronometer. The lugs measure 18mm in width.

Frequently asked questions

What is the lug width of the Breitling Colt A7438953.A772.178A?

The Breitling Colt A7438953.A772.178A has a lug width of 18mm. This measurement refers to the internal distance between the two lugs and is the key parameter for selecting a compatible strap. Always verify with a calliper before purchasing.

What is the best strap for the Breitling Colt A7438953.A772.178A?

For the Colt 36mm with a blue dial, vegetable-tanned calf leather offers the best balance for everyday wear, whilst alligator leather suits more formal occasions. NATO nylon is ideal for sporting use, and vulcanised rubber is best suited to humid or marine environments. The choice ultimately depends on context and personal colour preference.

How do I change the strap on the Breitling Colt A7438953.A772.178A?

To replace the strap, remove the spring bars securing it to the lugs using a dedicated spring bar tool. Work on a soft surface to protect the case and bezel from scratches. If in doubt, entrust the operation to a watchmaker or contact the Casati Milano atelier for assistance.

Are there aftermarket straps compatible with the Breitling Colt A7438953.A772.178A?

Yes, any strap with an 18mm attachment width is compatible with the Breitling Colt A7438953.A772.178A. Milanostraps.it offers a dedicated selection of handcrafted 18mm straps in leather, rubber, and nylon, engineered to meet the dimensional specifications and quality standards of the original.

How long does a leather strap last on a Breitling Colt A7438953.A772.178A?

Longevity depends on the material and usage conditions. A quality calf leather strap, with regular care, will last between 18 and 36 months under daily wear. Shell cordovan can exceed five years. Alligator leather, properly maintained, typically lasts three to four years. Systematic exposure to perspiration or water significantly reduces the service life of any leather strap.

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