Strap for Chronomat 44

The lug width of the Breitling Chronomat B01 44 JB011010Q587377J is 22 mm. This is the measurement to specify when ordering a replacement strap, whether online at milanostraps.it or through the Casati Milano atelier for a bespoke commission.

For an 18kt white gold case, a vegetable-tanned alligator strap in slate grey, black or ivory offers the most aesthetically coherent pairing. Shell cordovan provides a compelling alternative with its dense, compact texture. For a sportier register, grey ballistic nylon NATO or vulcanised rubber are functionally sound and visually appropriate choices.

The Chronomat B01 44 uses standard 22 mm spring bars. Using a fine-tipped springbar tool, compress the bar on the inner side of the lug and slide the strap free. No Breitling-specific tools are required. It is advisable to work on a soft surface to avoid scratching the white gold case.

Yes. Any 22 mm strap with straight or slightly curved ends is compatible with the Chronomat B01 44. Milanostraps.it offers a curated selection of 22 mm straps in various materials — leather, alligator, NATO, rubber — designed to fit the Chronomat's lug geometry without modification.

The lifespan of a leather strap depends on the material, frequency of wear and maintenance. A quality vegetable-tanned alligator strap, rotated regularly and kept dry, can last between three and six years whilst developing a distinguished patina. Shell cordovan offers above-average structural durability. Casati Milano straps carry an 18-month manufacturing warranty.