Strap for Montbrillant 01 Stainless Steel / Mercury Silver / Air Racer

The lug width of the Breitling Montbrillant AB013012|G735|223A is 20mm. This measurement should be taken with a digital calliper inside the lugs, perpendicular to the strap axis, to ensure a precise fit without lateral play.

For the Montbrillant, a bombé alligator strap in vegetable-tanned leather is the most coherent choice for its instrumental character in formal settings. For intensive daily wear, box-calf or shell cordovan offer durability and a progressive patina. In sporting or humid environments, vulcanised rubber is the preferred option.

To replace the strap, use a forked or pointed spring bar tool. Insert it into the slot of the spring bar inside the lug, compress inward, and slide the strap out. The operation requires no specialist tools, but it is advisable to work on a soft surface to avoid scratching the case.

Yes. Any strap with a 20mm lug width is dimensionally compatible. Milano Straps offers a selection of handcrafted straps in various materials — alligator, calf leather, cordovan, rubber, NATO — specifically measured to ensure correct fitment with the Montbrillant's lugs.

The lifespan of a leather strap depends on the material, frequency of use, and exposure to perspiration and moisture. A quality alligator strap, used in rotation, typically lasts 2–4 years. Calf leather tends to deteriorate more quickly with direct skin contact. Shell cordovan, owing to its fibre density, is among the most long-lasting materials. Regular treatment with a neutral colourless cream significantly extends the strap's life.