Strap for Chronomat Evolution Stainless Steel / Grey

The lug width of the Breitling Chronomat Evolution A1335611/F517 is 20 mm. This measurement should be taken with a digital calliper between the two lugs at the innermost point, flush against the case. It is advisable to verify the exact dimension on the physical watch, as production tolerances between batches may vary by 0.2–0.3 mm.

For the Chronomat Evolution A1335611/F517, a vegetable-tanned alligator strap with square-scale finish offers the most coherent pairing with the watch's technical-elegant character. Shell cordovan is an excellent choice for those seeking long-term patina and structural integrity. For intensive sporting use, technical rubber or nylon NATO straps provide durability and comfort without compromising aesthetics.

To replace the strap on the Chronomat Evolution, a fine-tipped spring bar tool is required. The lugs on this model are particularly thick, so care must be taken to avoid scratching the brushed surfaces. Once the original strap has been removed, insert the spring bars of the new strap and press firmly until they click into the lug holes. If in doubt, it is advisable to consult a watchmaker or specialist atelier.

Yes. The standard 20 mm lug width ensures broad compatibility with quality aftermarket straps. However, it is important to select straps with curved ends or bespoke pieces crafted to the specific lug profile of the Chronomat Evolution, which features a pronounced internal curvature. Milanostraps.it offers a curated selection of compatible 20mm straps, including bespoke options produced by Casati Milano atelier.

The lifespan of a leather strap depends on the material, tanning method, and frequency of use. A vegetable-tanned alligator strap, when rotated with other straps and kept away from prolonged moisture exposure, can last 3–5 years while retaining its shape and patina. Shell cordovan, due to the density of its fibres, tends to last even longer, developing a distinctive patina over time. Casati Milano provides an 18-month guarantee against manufacturing defects.