Strap for Chronomat Colt 41 Automatic Silver / Calf / Pin

The Breitling Colt A17313101G1X1 has a lug width of 20mm. This measurement corresponds to the internal distance between the two case lugs and determines the exact width of any compatible strap. It is advisable to verify this with a calliper before purchasing an aftermarket strap.

The ideal choice depends on the intended use. For sporting and outdoor contexts, vulcanised rubber or ballistic nylon NATO straps are the most practical option. For a more formal register, vegetable-tanned calf leather or alligator provide superior aesthetic results. Shell cordovan offers an excellent middle ground between durability and refinement.

Strap replacement requires a dual-tip springbar tool to remove the spring bars securing the strap to the case lugs. Insert the tool at approximately 45° towards the lug, compress the spring bar and slide the strap free. The operation takes only a few minutes and does not require sending the watch to an authorised service centre.

Yes. Any strap with a 20mm lug width is technically compatible with the Breitling Colt A17313101G1X1. Milanostraps.it offers a curated selection of 20mm straps in various materials — leather, rubber, NATO — all compatible with this reference and fitted without any modification to the case.

A quality leather strap, whether vegetable-tanned calf or shell cordovan, typically lasts between two and four years with daily wear, depending on exposure to perspiration, water and UV light. Regular conditioning with a suitable leather cream and rotating between multiple straps will significantly extend the lifespan of the piece. Casati Milano straps carry an 18-month warranty against manufacturing defects.