Strap for Colt 36 Pearl Diamond / Sahara

The Breitling Colt A7438911/A771/236X/A16BA.1 has a lug width of 18mm. This measurement should be taken with a calliper between the two lugs at the strap attachment point, not along the outer edge of the case. Any strap with an 18mm attachment is compatible with this reference.

For the Breitling Colt 36mm, a vegetable-tanned calfskin strap with a fine grain is the most balanced choice: it complements the sobriety of the steel case and develops a distinctive patina over time. Alternatively, a matte alligator or shell cordovan strap elevates the formal register. For sporting use, vulcanised rubber is the most coherent option given the Colt's instrumental DNA.

The strap is removed using a flat-tipped springbar tool. Insert the tip into the lug hole between the lug and the strap, compress the spring bar inward and gently lift the strap away. Repeat on the other lug. No specialist tools are required, though it is advisable to work on a soft surface to avoid scratching the case.

Yes, any standard 18mm strap is compatible with the Breitling Colt A7438911/A771/236X/A16BA.1. Milano Straps offers a curated selection of handcrafted leather, rubber and NATO straps in 18mm, made with selected materials and also available in bespoke versions through the Casati Milano atelier.

The lifespan of a leather strap depends on the material, frequency of use and exposure to perspiration and moisture. A quality vegetable-tanned calfskin strap typically lasts 2–4 years with regular wear. Shell cordovan and alligator offer superior durability, often exceeding 4–5 years. Avoiding direct contact with water and storing the strap away from heat sources significantly extends its service life.