Breitling
Chronomat 36 G10380BB1K1G1— lug 20mm

The Breitling Chronomat 36 G10380BB1K1G1 has a lug width of 20 mm. This is the measurement to use when selecting any aftermarket strap, whether in leather, rubber, or NATO configuration.

For the mother-of-pearl dial version with its bi-metal case in steel and white gold, a vegetable-tanned alligator strap in slate grey or deep navy blue provides the most balanced pairing. Shell cordovan in natural or honey tones is a high-quality alternative. For a more casual wear, a rubber strap with square-pattern texture echoes the Chronomat's sporting DNA.

Strap replacement requires a flat-blade spring bar tool to remove the spring bars from the lugs. On a 36 mm case, the spring bars are slender; a purpose-made tool is strongly recommended to avoid scratching the white gold surfaces. The operation can also be carried out by a watchmaker or at the Casati Milano atelier.

Yes. Any strap with a 20 mm lug width is technically compatible. It is advisable to ensure the strap's end curvature suits the Chronomat's sportive case geometry. Milanostraps.it offers a curated selection of 20 mm straps crafted with the appropriate thickness and curve profile for this type of case.

Longevity depends on the material and conditions of use. A quality vegetable-tanned alligator strap, worn daily under normal conditions, typically lasts between two and four years. Shell cordovan, owing to its dense fibre structure, generally outlasts other leathers. Moisture and perspiration accelerate wear; rotating between at least two straps is advisable.