Strap for Chronomat 44 Stainless Steel / Rose Gold / Diamond / Antarctica White / Bracelet

The lug width of the Breitling Chronomat B01 44 CB0110AA.A696.375C is 22 mm. This measurement should be taken internally between the two lugs using a digital calliper, positioned flush against the case at its narrowest point. Any strap with a 22 mm attachment is compatible with this reference.

For the two-tone steel and rose gold version, a warm-toned alligator strap — cognac, whisky or tobacco — complements the rose gold details and develops a patina that matures in keeping with the Chronomat's instrument aesthetic. Vegetable-tanned calf leather is a more versatile everyday option, while a technical nylon NATO strap reinforces the tool-watch character of the B01 calibre. A deployant clasp in steel with gold-tone accents completes the more formal configurations.

The strap is removed using a springbar tool inserted laterally into the lug to compress the springbars and release the strap. No specialist tools are required, but care should be taken to avoid scratching the case: work on a soft surface and consider protecting the lugs with masking tape before proceeding.

Yes, the aftermarket offering for 22 mm attachments is extensive. It is important to verify that the strap has a straight (non-curved) end and that the attachment thickness is compatible with the lug height of the Chronomat. Milano Straps offers a curated selection of handcrafted 22 mm straps produced by Casati Milano, using selected leathers and hand-stitched construction, designed specifically for sport-luxury chronographs of this calibre.

Longevity depends on leather type, frequency of wear, and exposure to perspiration and environmental factors. A quality calf strap has an average lifespan of 12–24 months with regular use. Vegetable-tanned alligator leather, being denser and less porous, tends to last considerably longer — up to 3–4 years — developing a distinctive patina over time. To extend strap life, avoid wearing it in water and apply a silicone-free leather conditioner periodically.