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

The lug width of the Breitling Colt A1338811/G804/131S/A20S.1 is 22mm. This measurement is taken between the two lugs at the point where they meet the case, using a digital calliper or a millimetre ruler. Any strap with a 22mm attachment is compatible with this reference.

The ideal choice depends on intended use. For sporting or aviation wear, a ballistic nylon NATO or a vulcanised rubber strap aligns most naturally with the Colt's technical character. For urban or semi-formal use, a black alligator or a vegetable-tanned calf leather strap in matte finish offers a refined transition without compromising the watch's professional identity.

Strap replacement requires a springbar tool, a double-ended instrument used to compress the spring bars seated within the lugs. Insert the pointed tip into the lug hole, compress the spring bar, and slide the strap out laterally. The operation takes under two minutes and requires no specialist watchmaking knowledge. NATO straps can be fitted without removing the spring bars at all.

Yes. Any strap with a 22mm lug width is technically compatible. Milano Straps offers a curated range of handcrafted straps in alligator, calf leather, shell cordovan, NATO webbing and rubber, produced using premium materials and available in various lengths and thicknesses to fit the Colt 44mm lugs precisely.

Longevity depends on the quality of the tanning process, leather thickness and frequency of wear. A quality vegetable-tanned calf strap worn daily typically lasts between 18 and 36 months. Alligator leather, owing to the natural structure of its scales which distributes mechanical stress more evenly, tends to last considerably longer. Rotating between straps and avoiding prolonged exposure to moisture will extend the lifespan of any leather strap.