Breitling · Colt

Strap for Colt 33 Blue / Rubber

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
ReferenceA7738711.C850.141S
FamilyColt
MovementBreitling caliber 77 hours, minutes, seconds | date | chronometer
Year2011 - 2014
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 A7738711.C850.141S

Selected for the 16 mm lug width

All 16 mm straps →

The Colt A7738711.C850.141S, seen from the bench

The Colt represents the sports line of Breitling characterized by robustness and functionality. It mounts the Breitling 77 caliber with hours, minutes, seconds, date functions and chronometer certification. The lugs measure 16mm in width.

Frequently asked questions

What is the lug width of the Breitling Colt A7738711.C850.141S?

The Breitling Colt A7738711.C850.141S has a lug width of 16mm. This is a specific measurement of this compact variant within the Colt family. Always verify with a calliper before purchasing an aftermarket strap, as even a one-millimetre discrepancy will prevent the spring bar from fitting correctly.

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

For the Colt 33mm, a vegetable-tanned calfskin strap is the most versatile option, developing a natural patina over time that complements the instrument-style dial. Hornback alligator elevates the piece to formal occasions, while a ballistic nylon NATO strap honours the Colt's military heritage. The ideal choice depends on the dial colour and intended use.

How do I change the strap on a Breitling Colt A7738711.C850.141S?

To replace the strap on the Breitling Colt A7738711.C850.141S, you will need a 1.5mm spring bar tool. Insert the tip into the spring bar slot, compress the spring on one side, and release the bar from the lug. Repeat on the other side. This can be done carefully at home, though entrusting the operation to a watchmaker is advisable to avoid scratching the case.

Are there aftermarket straps compatible with the Breitling Colt 33mm?

Yes, a wide range of aftermarket straps are compatible with the 16mm lug width of the Breitling Colt 33mm. Milano Straps offers a curated selection of handcrafted leather, rubber, and nylon straps with a 16mm attachment width, available in various lengths and colours. Compatibility is determined solely by the lug width, regardless of the strap manufacturer.

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

The lifespan of a leather strap depends on the material and conditions of use. A quality calfskin strap worn daily typically lasts 12 to 24 months; an alligator strap, properly maintained, can exceed 36 months. Shell cordovan, owing to the density of its fibres, is among the most durable options. Prolonged exposure to water, perspiration, and heat accelerates deterioration; regular conditioning significantly extends longevity.

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