Strap for Chronomat 44 GMT Stainless Steel / Sierra Silver / Calf

The lug width of the Breitling Chronomat B01 44 AB042011.G745.437X is 22mm. This measurement refers to the internal distance between the two lugs of the case and determines the correct strap width to fit. To verify it on your own piece, a vernier calliper is recommended.

For the Chronomat B01 44, the choice depends on intended use: alligator leather in dark brown or tobacco enhances the sporty-elegant character, while vegetable-tanned calf leather develops an authentic patina over time. A ballistic nylon NATO strap recalls the model's aeronautical origins. All styles are available in 22mm lug width.

The strap on the Chronomat B01 44 is removed via the spring bars connecting the strap to the case lugs. A spring bar tool is required: insert the tip into the lateral notch of the spring bar, compress it and slide the strap free. The replacement does not require opening the case and does not affect water resistance.

Yes, any aftermarket strap with a 22mm lug width is compatible with the Breitling Chronomat B01 44 AB042011.G745.437X. Milano Straps offers a curated selection of handcrafted straps in 22mm, made from selected leathers with hand-stitched finishing, designed to respect the proportions and character of the model.

The lifespan of a leather strap depends on leather quality, frequency of wear and exposure to moisture and perspiration. A quality calf leather strap, with periodic conditioning (leather cream every 2-3 months), typically lasts 2-4 years. Alligator leather or shell cordovan, thanks to their dense fibre structure, generally offer greater longevity.