Breitling · Colt

Strap for Colt 44 Automatic Volcano Black / 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
ReferenceA1738811.BD44.433X
FamilyColt
MovementBreitling caliber 17 hours, minutes, seconds | date
Year2014
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 A1738811.BD44.433X

Selected for the 22 mm lug width · workshop selection

All 22 mm straps →

The Colt A1738811.BD44.433X, seen from the bench

The Breitling Colt A1738811.BD44.433X is a 44mm stainless steel watch designed for extreme environments, with origins in the 1980s as a response to NATO aviation requirements. It features the Breitling 17 calibre movement (derived from ETA 2824-2), a unidirectional rotating bezel, and water resistance to 200 metres. The 22mm lug width accommodates precise strap fitment without lateral play. The mixed satin and polished steel case resists corrosion and mechanical impact, while the dial prioritises readability with hours, minutes, seconds and date at 3 o'clock.

Frequently asked questions

What is the lug width of the Breitling Colt A1738811.BD44.433X?

The Breitling Colt A1738811.BD44.433X has a lug width of 22mm. This measurement is standard across the 44mm Colt range and allows for direct fitment of aftermarket straps without adapters, provided the strap respects the exact 22mm attachment width.

What is the best strap for the Breitling Colt A1738811.BD44.433X?

The ideal choice depends on context. For aquatic or high-activity use, a vulcanised rubber strap in 22mm is the most technically appropriate option. For everyday wear, a vegetable-tanned calf leather or matte alligator belly strap complements the steel case without overpowering the instrument-grade aesthetic of the Colt. A ballistic nylon NATO strap is well suited for those seeking versatility and quick change capability.

How do you change the strap on the Breitling Colt A1738811.BD44.433X?

Strap replacement requires a fine-tipped spring bar tool. Insert the tool into the lug hole or the gap between the strap and lug, compress the spring bar and slide the strap free. The process takes approximately two minutes and requires no specialist equipment, though working on a soft surface is advisable to avoid case scratches.

Are there aftermarket straps compatible with the Breitling Colt A1738811.BD44.433X?

Yes. Any strap with a 22mm attachment and 20mm tail is compatible with the Breitling Colt A1738811.BD44.433X. milanostraps.it offers a curated selection of handcrafted leather, rubber and NATO straps specifically calibrated for this lug width, with finishes and materials chosen to enhance the stainless steel case.

How long does a leather strap last on the Breitling Colt A1738811.BD44.433X?

Longevity depends on leather quality, frequency of use and exposure to moisture and perspiration. A first-grade vegetable-tanned strap worn daily with proper care will typically last between 2 and 4 years. Shell cordovan and alligator straps, owing to the density of their fibre structure, tend to last longer and develop a patina that increases their aesthetic value over time.

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