Strap for Colt 41 Automatic Mariner Blue / Calf

The lug width of the Breitling Colt A1731311.C934.425X is 20mm. This measurement should be taken with a millimetre calliper at the inner base of the lugs, at the strap attachment point, to ensure a precise reading before purchasing a replacement strap.

For the Breitling Colt A1731311.C934.425X, a vegetable-tanned calfskin or matte alligator strap in 20mm lug width complements the tool watch character of the case. A NATO nylon strap remains true to the Colt's military heritage, while vulcanised rubber is recommended for aquatic or sporting use.

To change the strap on the Breitling Colt A1731311.C934.425X, use a fine-tipped spring bar tool or a thin-bladed screwdriver. Compress the spring bar inward within the lug, release one side at a time, then fit the new strap ensuring the correct orientation. Take care not to scratch the satin-finished steel case.

Yes, any standard 20mm strap is compatible with the Breitling Colt A1731311.C934.425X. Milanostraps.it offers a curated selection of artisan aftermarket straps in leather, rubber and nylon, all produced specifically for this lug width.

The lifespan of a leather strap on a Breitling Colt A1731311.C934.425X depends on leather quality and frequency of wear. A high-grade vegetable-tanned calfskin strap, properly maintained, typically lasts between two and four years. Shell cordovan, owing to its dense fibre structure, can exceed five years while retaining both structural integrity and surface finish.