Strap for Chronomat 47 GMT Stainless Steel / Metallica Blue /

The lug width of the Breitling Chronomat B01 44 AB041012.C834.383A is 24mm. This measurement refers to the distance between the attachment holes on the case and is essential for selecting compatible straps. To verify it, use a digital calliper and measure from the inner edge of the upper lug to the inner edge of the lower lug.

For the Chronomat B01 44 AB041012.C834.383A, alligator leather in vegetable tanning represents the solution of maximum elegance: the natural texture dialogues with the satin-finished steel case. Shell cordovan is ideal for those who wish a strap that acquires patina over time. For sport and maritime contexts, 1000D polyamide NATO or vulcanised rubber ensures water resistance and immediate maintenance.

The Chronomat B01 44 features a removable crown with a patented safety shoulder. First remove the crown by pulling it outward, then use a spring bar tool to push the elastic pins laterally and slide the old lug out of the attachment holes. Insert the new lug (24mm) and verify that it is firmly seated in the holes before reinstalling the crown.

Yes, all straps with a 24mm attachment width are compatible with the Chronomat B01 44 AB041012.C834.383A. Milano Straps offers a collection of 24mm straps customisable in leather (alligator, cordovan, calf), NATO and rubber, ready for dispatch or customisable via the Casati Milano atelier with options for length, initials and thread colour.

The lifespan of a leather strap depends on frequency of use, climatic conditions and maintenance. High-quality alligator or shell cordovan in vegetable tanning lasts 3–5 years under intensive daily use. Exposure to direct sunlight, humidity and heat accelerates deterioration. Rotating with alternative straps (NATO, rubber) extends the useful life of each piece. Milano Straps guarantees 18 months on bespoke straps made by Casati Milano.