Breitling · Colt

Strap for Colt Lady Pearl / Rubber / Pin

Takes 16 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width16 mm
Case diameter33 mm
ReferenceA7738811/A770/141S/A14S.1
FamilyColt
MovementBreitling caliber Caliber 77 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 A7738811/A770/141S/A14S.1

Selected for the 16 mm lug width

All 16 mm straps →

The Colt A7738811/A770/141S/A14S.1, seen from the bench

The Breitling Colt A7738811/A770/141S/A14S.1 is a 33mm sports watch designed for civil and military aviation requirements. It features a Breitling Caliber 77 automatic movement, COSC-certified chronometer precision (−4/+6 seconds/day), and a stainless steel case with mixed brushed and polished finishing. The watch displays hours, minutes, seconds, and date. Lug width is 16mm, a precise specification for strap attachment between the case horns.

Frequently asked questions

What is the lug width of the Breitling Colt A7738811/A770/141S/A14S.1?

The Breitling Colt A7738811/A770/141S/A14S.1 has a lug width of 16mm. This measurement is taken internally between the two case lugs, at the spring bar attachment point. Any replacement or aftermarket strap must match this width precisely to ensure a correct and secure fit.

What is the best strap for the Breitling Colt 33mm?

For the 33mm Colt, a vegetable-tanned calfskin strap offers the most versatile combination of durability, aesthetics and patina development over time. For formal occasions, a smooth alligator strap in burgundy or tobacco adds warmth and depth. For sport or humid environments, a high-quality rubber strap maintains the watch's technical character. All straps must be 16mm at the lug.

How do I change the strap on a Breitling Colt?

You will need a springbar tool to compress and release the spring bars from the case lugs. Carefully insert the forked end of the tool between the strap and the lug, compress the spring bar and slide the strap free. Insert the new 16mm strap, ensuring both spring bars click securely into the lug holes before wearing the watch.

Are there aftermarket straps compatible with the Breitling Colt A7738811/A770/141S/A14S.1?

Yes, a wide range of aftermarket straps with a 16mm lug width are compatible with this reference. Milano Straps offers handcrafted options in leather, alligator, calfskin and technical materials, cut and finished to fit the Colt's lugs without modification. Precise measurements ensure an optimal fit and a finish consistent with the watch's aesthetic.

How long does a leather strap last on a Breitling Colt?

The lifespan of a leather strap depends on hide quality, tanning method and daily use. A first-cut vegetable-tanned strap, properly maintained with leather conditioner and kept away from prolonged water exposure, can last between three and seven years while retaining its appearance. Alligator and shell cordovan straps tend to last longer due to their denser fibre structure. Milano Straps provides an 18-month guarantee against manufacturing defects.

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