Strap for Colt Chronograph Automatic Stainless Steel / Mariner Blue / Calf / Folding

The Breitling Colt A1338811/C914/434X/A20D.1 has a lug width of 22mm. This measurement is taken with a digital calliper at the internal attachment point between the two lugs. Any replacement strap must be exactly 22mm wide at the spring bar connection to fit correctly.

The choice depends on intended use. For operational or sporting contexts, a ballistic nylon NATO or vulcanised rubber strap offers durability and comfort. For daily or formal wear, a vegetable-tanned calfskin or A-grade alligator with square grain provides superior aesthetic value whilst maintaining the structural robustness suited to a 44mm case.

The strap is removed using a fine-tipped springbar tool inserted into the lug hole to compress the internal spring bars. Once released, the strap slides out without force. It is advisable to work on a soft surface to protect the case, and to check the spring bar length before fitting the new 22mm strap.

Yes. The 22mm format is one of the most common in the professional segment, ensuring a wide selection of quality aftermarket straps. Milano Straps offers options in alligator, calfskin, shell cordovan, NATO, and rubber, all fitted with standard 22mm spring bars compatible with the Colt's lugs. Deployant clasps and pin buckles in stainless steel are also available.

Longevity depends on materials and usage. A quality vegetable-tanned calfskin strap under moderate daily use typically lasts between 18 and 36 months before showing significant wear. Perspiration and water exposure accelerate deterioration: for intensive or summer use, alternating with a NATO or rubber strap is recommended. Alligator straps, owing to the denser natural fibre, tend to last longer when properly maintained.