Breitling · Colt

Strap for Colt Chronograph Automatic Stainless Steel / Stratus Silver / Calf / Pin

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
ReferenceA1338811/G804/437X/A20BA.1
FamilyColt
MovementBreitling caliber Caliber 13 Hours, Minutes, Small Seconds | Date | Chronograph
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 A1338811/G804/437X/A20BA.1

Selected for the 22 mm lug width · workshop selection

All 22 mm straps →

The Colt A1338811/G804/437X/A20BA.1, seen from the bench

The Breitling Colt Chronograph Automatic A1338811/G804/437X/A20BA.1 is a professional chronograph watch in stainless steel with a 44mm case and unidirectional bezel. It features the certified COSC Breitling Caliber 13 chronographic movement with hours, minutes, small seconds, date, and chronograph functions. The watch is designed for military and civil pilots, emphasizing mechanical reliability and dial legibility without aesthetic excess. It requires a 22mm lug width for strap compatibility.

Frequently asked questions

What is the lug width of the Breitling Colt A1338811/G804/437X/A20BA.1?

The lug width of the Breitling Colt A1338811/G804/437X/A20BA.1 is 22mm. This measurement should be taken with a millimetre calliper between the two lugs on the same side, at the narrowest point of the channel, before purchasing any aftermarket strap.

What is the best strap for the Breitling Colt A1338811/G804/437X/A20BA.1?

For the Breitling Colt A1338811/G804/437X/A20BA.1 the ideal choice depends on the intended use: vegetable-tanned alligator leather suits formal occasions, black or anthracite box-calf suits rigorous daily wear, and ballistic nylon NATO straps are recommended for operational or outdoor activities. The lug width to observe in all cases is 22mm.

How do you change the strap on a Breitling Colt A1338811/G804/437X/A20BA.1?

To replace the strap on the Breitling Colt A1338811/G804/437X/A20BA.1, use a fine-tipped spring bar tool. Insert the tip into the spring bar slot inside the lug, compress the spring bar and slide the strap free. Care must be taken not to scratch the satin-finished case surfaces; if in doubt, a watchmaker should carry out the operation.

Are there aftermarket straps compatible with the Breitling Colt A1338811/G804/437X/A20BA.1?

Yes. Any strap with a 22mm lug width is dimensionally compatible with the Breitling Colt A1338811/G804/437X/A20BA.1. milanostraps.it offers a curated selection of handcrafted 22mm straps in alligator, calf leather, shell cordovan and NATO, produced with materials and finishes selected for this type of professional case.

How long does a leather strap last on a Breitling Colt A1338811/G804/437X/A20BA.1?

The lifespan of a leather strap depends on the type of hide, frequency of use and maintenance routine. A quality calf leather strap, maintained with a leather conditioner every three to four months and dried after water exposure, typically lasts two to four years. Vegetable-tanned alligator leather and shell cordovan offer superior longevity — often exceeding five years — owing to the density of the hide fibre and resistance to friction wear.

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