Strap for Colt 44 Automatic Mariner Blue / Rubber

The lug width of the Breitling Colt A1738811.C906.145S is 22mm on both sides of the case. This is the measurement to specify when purchasing any compatible aftermarket strap.

For a 44mm tool watch such as the Colt, a Tuscan vegetable-tanned calf leather strap offers the best balance of durability, authentic patina development and versatility. Alligator is suited to formal occasions, ballistic nylon NATO for intensive use, and vulcanised rubber for sports or aquatic environments.

The strap is replaced using a spring bar tool or thin flathead screwdriver to slide the spring bars out from within the lugs. With the correct 22mm buckle and keeper, the operation takes under two minutes and requires no professional equipment. If in doubt, Casati Milano offers a fitting service by appointment.

Yes. Any strap with a 22mm attachment width and standard taper is compatible with the Breitling Colt A1738811.C906.145S. Milano Straps offers a curated selection of handcrafted leather, rubber and nylon straps specifically tested at this width, fitted with stainless steel buckles or deployant clasps.

A quality leather strap — vegetable-tanned calf or alligator — worn daily under moderate conditions will typically last between 18 and 36 months. Longevity depends on exposure to perspiration, moisture and how frequently the strap is rotated. Milano Straps straps carry an 18-month manufacturing warranty.