Strap for Montbrillant 01 Stainless Steel / Mercury Silver / Calf

The lug width of the Breitling Montbrillant AB013012.G709.431X is 20mm. This measurement refers to the internal gap between the two case lugs at the strap attachment point and should be verified with a digital calliper to ensure a precise fit.

The most coherent choices for the Montbrillant AB013012.G709.431X are vegetable-tanned calf leather for versatile daily wear, Mississippiensis alligator with a regular grain for formal settings, and shell cordovan for those seeking longevity and a natural patina. A heavy-weave NATO strap suits active use. All options must feature a 20mm attachment width.

The strap on the Montbrillant is replaced using a spring bar tool, inserting the tip into the notch between the lug and the spring bar to compress the pin and slide the strap free. Care should be taken not to scratch the steel lugs: placing a soft cloth beneath the case during the operation is strongly advised.

Yes, any aftermarket strap with a 20mm attachment width is compatible with the Montbrillant AB013012.G709.431X. Milanostraps.it offers a curated selection of artisan straps in leather, shell cordovan and technical materials, crafted to measure by the Casati Milano atelier, with standard buckle or steel deployant clasp options.

Strap longevity depends on the material and maintenance: a vegetable-tanned calf strap in regular daily use typically lasts 2–4 years. Shell cordovan, owing to its structural density, can exceed 5–7 years. High-quality alligator has a comparable lifespan provided it is kept away from prolonged moisture and treated periodically with creams formulated for exotic leathers.