Strap for Colt 41 Automatic Volcano Black / Rubber

The lug width of the Breitling Colt A1731311.BE90.150S is 20 mm. This measurement should be taken with a digital calliper positioned perpendicularly between the two lugs at the point of contact with the strap. The taper towards the buckle end is typically 18 mm.

The ideal strap for the Breitling Colt A1731311.BE90.150S depends on the intended use. Vegetable-tanned alligator leather complements the instrument-grade stainless steel case elegantly, whilst a high-density NATO nylon strap stays true to the model's military heritage. For formal occasions, shell cordovan in tobacco or burgundy introduces a refined sartorial note.

To replace the strap on the Breitling Colt A1731311.BE90.150S, you will need a spring bar tool or a dedicated lug lever. Insert the tool into the spring bar slot, compress the bar laterally to release it from the lug hole, and slide the strap free. Work on a soft surface to protect the case and crystal. The operation takes approximately 2–3 minutes for anyone familiar with watchmaking tools.

Yes, the 20 mm lug width of the Breitling Colt A1731311.BE90.150S is a universal standard. Milanostraps.it offers a wide selection of compatible handcrafted aftermarket straps in leather, NATO nylon, rubber and cordovan, all produced using premium materials and hand-finished in Italy.

The lifespan of a leather strap on the Breitling Colt A1731311.BE90.150S depends on the material and conditions of use. A quality vegetable-tanned calf leather strap, properly maintained and rotated with other straps, typically lasts 2–4 years. Alligator tends to last longer due to the density of its scales; shell cordovan, owing to its compact fibre structure, is among the most durable options. Prolonged exposure to perspiration, water and UV radiation accelerates deterioration.