Strap for Chronomat 44

The lug width of the Breitling Chronomat B01 44 (ref. IB011012A696375A) is 22mm. This measurement is taken between the lugs at the narrowest point, closest to the case, using a digital calliper or a millimetre ruler. Any strap with a 22mm attachment is fully compatible with this reference.

For the two-tone steel and rose gold variant of the Chronomat B01 44, the most suitable materials are alligator leather in cognac or tobacco tones — which complement the rose gold inserts — and vegetable-tanned calf leather for a sportier register. Vulcanised rubber is the logical choice for intensive use, preserving the instrument character of the chronograph. A classic pin buckle in steel or rose gold, or alternatively a butterfly deployant clasp, complete the pairing.

To replace the strap on the Chronomat B01 44, the spring bars connecting the strap to the case lugs must be removed. A dedicated spring bar tool is used to lever the bar from the inner side of the lug. Care should be taken to avoid scratching the case: it is advisable to protect the lugs with low-tack adhesive tape or to entrust the operation to a watchmaker.

Yes. Any strap with a standard 22mm attachment and spring bars is compatible with the Breitling Chronomat B01 44. Milano Straps offers a selection of handcrafted 22mm straps in various leathers, finishes and colours, produced with carefully selected materials and Italian artisan craftsmanship. Compatibility is guaranteed by the model's standard lug width.

The lifespan of a leather strap depends on the quality of the hide, maintenance and daily use. A good-quality vegetable-tanned calf strap, with regular care (conditioning cream every 2–3 months, avoiding prolonged water exposure), has an average life of 2–4 years. A high-grade alligator strap, properly maintained, can last 5–8 years. Milano Straps provides an 18-month guarantee against manufacturing defects on all Casati Milano atelier straps.