Breitling · Colt

Strap for Colt 41 Automatic Volcano Black / Rubber

Takes 20 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width20 mm
Case diameter41 mm
ReferenceA1731311.BE90.225S
FamilyColt
MovementBreitling caliber 17 hours, minutes, seconds | date
Year2016
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 A1731311.BE90.225S

Selected for the 20 mm lug width

All 20 mm straps →

The Colt A1731311.BE90.225S, seen from the bench

The Breitling Colt is equipped with the Caliber 17 with hour, minute, second, and date functions. The model features 20mm lug width straps. The A1731311.BE90.225S reference belongs to the Swiss brand's sports collection.

Frequently asked questions

What is the lug width of the Breitling Colt A1731311.BE90.225S?

The Breitling Colt A1731311.BE90.225S has a lug width of 20mm. This measurement should be taken with a calliper between the two lugs at the lower end of the case, where the strap attaches. The buckle end width typically tapers to between 16mm and 18mm depending on the strap model selected.

What is the best strap for the Breitling Colt A1731311.BE90.225S?

For the Colt A1731311.BE90.225S with its 41mm stainless steel case, a vegetable-tanned alligator or grain calf leather strap best complements the watch's technical aesthetic. For sporting use, vulcanised rubber or ballistic nylon NATO straps are preferable for durability and comfort. A stainless steel deployant clasp rounds off the pairing with material consistency.

How do you change the strap on a Breitling Colt A1731311.BE90.225S?

To replace the strap on the Colt A1731311.BE90.225S, use a spring bar tool or a fine flat-head screwdriver to remove the spring bars securing the strap to the lugs. Care must be taken to avoid scratching the stainless steel case. If in doubt, it is advisable to consult a watchmaker or visit the Casati Milano atelier.

Are there aftermarket straps compatible with the Breitling Colt A1731311.BE90.225S?

Yes, any strap with a 20mm lug width is compatible with the Breitling Colt A1731311.BE90.225S. Milanostraps.it offers a curated selection of handcrafted leather, rubber and textile straps in this size, with customisation options covering material, colour, stitching and clasp type.

How long does a leather strap last on a Breitling Colt A1731311.BE90.225S?

The lifespan of a leather strap depends on the quality of the hide, the tanning method and daily wear conditions. A high-quality vegetable-tanned alligator or shell cordovan strap can last between three and seven years with regular maintenance — periodic cleaning and application of a leather conditioner. Prolonged exposure to water and perspiration significantly reduces service life; rubber or NATO straps are recommended for intensive use.

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