Strap for Chronomat Evolution Stainless Steel / Blue

The lug width of the Breitling Chronomat Evolution A1335611/C645 is 20mm. This measurement is taken with a calliper at the inner distance between the lugs at the point where the bracelet or strap interfaces with the case.

For the Chronomat Evolution, matte alligator, vegetable-tanned calfskin and shell cordovan are the most coherent artisanal choices given the watch's aviation-tool character. NATO straps or vulcanised rubber straps suit intensive daily wear.

Replacing the integrated bracelet on the Chronomat Evolution requires removing the end-link connections at the lugs using an appropriate spring bar tool. Care must be taken to avoid scratching the case; for a first replacement, it is advisable to consult a watchmaker or the Casati Milano atelier.

Yes. The standard 20mm lug width ensures full compatibility with a wide range of artisan aftermarket straps. Milanostraps.it offers a curated selection of 20mm straps with colour and material combinations suited to this reference.

With regular maintenance — avoiding prolonged water exposure, conditioning with leather cream every 3–4 months, and alternating between straps — a quality artisan leather strap typically lasts 3 to 5 years. Alligator and shell cordovan straps, thanks to their dense fibre structure, generally outlast standard calfskin.