Strap for Chronoliner Blacksteel / Black / Ocean Classic

The lug width of the Breitling Chronoliner M2431013.BF02.159M is 22mm. This measurement is taken between the two lugs using a digital calliper, positioned perpendicular to the longitudinal axis of the case. Respecting this measurement is essential to ensure a correct, play-free strap fitting.

For the Chronoliner M2431013.BF02.159M, the most suitable materials are: Hornback alligator for an elegant-sport register, vegetable-tanned Tuscan calf leather for everyday wear that develops a natural patina over time, nylon NATO for the original aeronautical context, and vulcanised rubber or FKM for intensive use conditions. A stainless steel deployant clasp improves wrist comfort regardless of the strap material chosen.

The strap on the Breitling Chronoliner is replaced using a fine-tipped spring bar tool or a small flat-head screwdriver. Insert the tool into the designated slot on the spring bar, compress the bar and slide the old strap out laterally. The operation is fully reversible and requires no specialist tools, though it is advisable to work on a soft surface to avoid scratching the ceramic case.

Yes, the Breitling Chronoliner M2431013.BF02.159M uses standard 22mm spring bars, compatible with any quality aftermarket strap of the same lug width. Milano Straps offers a curated selection of handcrafted 22mm straps in leather, alligator, shell cordovan, NATO and rubber, made with European materials and hand-finished. Compatibility is guaranteed across all 22mm models in the collection.

The lifespan of a leather strap depends on the type of hide, maintenance and frequency of wear. A quality vegetable-tanned calf strap, regularly conditioned with a neutral leather cream, typically lasts between 2 and 4 years of daily use. Alligator and shell cordovan, due to their dense fibre structure, tend to last longer while developing a distinctive patina. Casati Milano provides an 18-month guarantee against manufacturing defects on all bespoke straps.