Strap for Colt 36 Mariner Blue / Sahara / Folding

The Breitling Colt A7438911/C913/247X/A16D.1 has a lug width of 18mm. This measurement should be taken with a calliper between the parallel lugs at the narrowest point of the channel, and is the essential figure for selecting a correctly sized aftermarket strap.

For the stainless steel Colt 36, straps in vegetable-tanned calf leather or domed alligator with a steel buckle or deployant clasp offer the most coherent match with the watch's instrumental aesthetic. For sports or marine contexts, a nylon NATO or vulcanised rubber strap are technically appropriate alternatives.

Strap replacement requires a fine-tipped spring bar tool. Insert the tool into the channel between the lug and the spring bar, compress the bar and slide the strap out laterally. The operation should be carried out with care to avoid scratching the brushed steel surfaces.

Yes. Any strap with a standard 18mm attachment and compatible spring bars is interchangeable with the Colt 36. Milano Straps offers a selection of handcrafted 18mm straps specifically chosen for proportions and materials suited to this reference.

Longevity depends on the type of leather, frequency of use and exposure to perspiration and moisture. A quality vegetable-tanned calf strap, maintained periodically with a nourishing cream, will retain its structural integrity for 2–4 years of daily wear. Alligator and shell cordovan, due to their denser fibre structure, tend to last considerably longer.