Breitling · Colt

Strap for Colt Lady Diamond / 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
ReferenceA7738853/A770/141S/A14S.1
FamilyColt
MovementBreitling caliber 77 hours, minutes, seconds | date | chronometer
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 A7738853/A770/141S/A14S.1

Selected for the 16 mm lug width

All 16 mm straps →

The Colt A7738853/A770/141S/A14S.1, seen from the bench

The Breitling Colt 33 (reference A7738853/A770/141S/A14S.1) is the compact, feminine interpretation of a line built to withstand extreme stress. Measuring 33mm in stainless steel with a screw-down crown and fluted bezel, it houses the automatic Breitling Caliber 77 movement, COSC chronometer-certified for daily precision between -4 and +6 seconds. The dial displays hours, minutes, seconds and date with legibility inspired by aeronautical instruments. The lug width is precisely 16mm, measured internally between the case lugs, ensuring compatibility only with straps of this exact dimension.

Frequently asked questions

What is the lug width of the Breitling Colt A7738853/A770/141S/A14S.1?

The lug width of the Breitling Colt A7738853/A770/141S/A14S.1 is 16mm. This measurement must be taken internally between the two lower lugs using a digital calliper positioned parallel to the bezel. Respecting this specification is essential to ensure the strap fits correctly without forcing.

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

For the Breitling Colt 33mm, a Mat Hornback alligator or vegetable-tanned calf leather strap is the most coherent choice, reflecting the instrument-driven character of the model. Alligator enhances the brushed case finishes; vegetable-tanned calf develops a personal patina over time. For a more sporting register, a vulcanised rubber strap is the most functional solution. In all cases, the correct lug width is 16mm.

How do you change the strap on the Breitling Colt A7738853/A770/141S/A14S.1?

The strap on the Breitling Colt A7738853/A770/141S/A14S.1 is secured by standard 16mm spring bars. To replace it, use a spring bar tool — either a lever or pin type — to compress the bar, remove the old strap, and fit the new one. The procedure is fully reversible and requires no professional tools, though working on a soft surface is recommended to avoid scratching the case.

Are there aftermarket straps compatible with the Breitling Colt 33?

Yes, milanostraps.it offers a selection of aftermarket straps compatible with the Breitling Colt 33, all made to a 16mm lug width. Options range from Mat alligator to vegetable-tanned calf, shell cordovan, and vulcanised rubber. Brushed steel buckles or deployant clasps are also available for a finish consistent with the original case.

How long does a leather strap last on the Breitling Colt 33?

The lifespan of a leather strap depends on the quality of the tanning, leather thickness, and conditions of use. A quality vegetable-tanned calf strap worn daily with proper care typically lasts 2–4 years. Shell cordovan, owing to its dense fibre structure, can last considerably longer. Avoiding prolonged contact with water and perspiration, and occasionally applying a leather conditioner, will significantly extend the strap's 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.

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Casati Milano · Via XX Settembre 15, Milan · by appointment only