Strap for Chronomat Evolution Stainless Steel / Yellow Gold / Black

The lug width of the Breitling Chronomat Evolution B1335611/K505 is 20 mm. This measurement is taken between the two inner lugs of the case, at the point of contact with the bezel, using a calliper or a millimetre ruler. This is the standard dimension required to select compatible straps.

For the Chronomat Evolution in gold-steel two-tone, a glossy alligator strap in honey or cognac tones complements the warm hues of the yellow gold. Natural shell cordovan is a compelling alternative for those seeking patina and dense texture. For daily or active use, black vulcanised rubber maintains the instrument-watch character of the piece.

Strap replacement requires a spring bar tool or a thin-tipped screwdriver. Insert the tool into the lug hole to compress the spring bar, then slide the strap free. When working on a two-tone gold-steel case, it is advisable to protect the lugs with low-tack masking tape to avoid any scratching during the procedure.

Yes. Any strap with a 20 mm lug width and straight ends is technically compatible. Milano Straps offers a curated selection of 20mm artisan leather, rubber and NATO straps suited to the Chronomat Evolution, available in standard lengths and bespoke sizing through the Casati Milano atelier.

Longevity depends on the material and conditions of use. A quality alligator strap, properly conditioned and kept away from prolonged water exposure, will typically last three to five years with regular wear. Shell cordovan, owing to the density of its fibres, tends to outlast most other leathers while developing a distinctive patina. Frequent exposure to moisture significantly reduces the lifespan of any leather strap.