Strap for Colt Chronograph Mariner Blue / Rubber / Pin

The lug width of the Breitling Colt A7338811/C905/158S/A20S.1 is 22mm. This measurement, taken with a digital calliper placed between the two lugs at the strap insertion point, determines the full range of compatible straps for this reference.

Given the technical and sporting character of the Colt, the most suitable options are a ballistic nylon NATO strap for daily use, a vegetable-tanned calfskin strap for a more restrained profile, and vulcanised rubber for humid or active environments. For formal occasions, a dark Hornback alligator strap provides a striking aesthetic contrast against the 44mm stainless steel case.

The strap is replaced using a thin-tipped spring bar tool, available in any basic watch toolkit. The spring bars are compressed by pressing on the lateral notches and withdrawn from the lugs. The operation takes under two minutes and requires no professional instruments. It is advisable to work on a soft surface to avoid scratching the case.

Yes. Any strap with a 22mm lug width is technically compatible with the Breitling Colt A7338811/C905/158S/A20S.1. Milano Straps offers an extensive selection of handcrafted 22mm straps in various materials — leather, alligator, NATO, rubber — made in Italy with bespoke finishing.

The lifespan of a leather strap depends on the material, tanning quality, and usage conditions. A quality vegetable-tanned calfskin strap, properly maintained (avoiding prolonged exposure to water and perspiration, conditioned every 2–3 months), typically lasts between 18 and 36 months of regular wear. Alligator leather, owing to the density of its fibres, tends to last longer and develops a distinguished patina over time.