Strap for Chronomat B01 42 Stainless Steel - Diamond / Silver / Rubber

The lug width of the Breitling Chronomat B01 42 AB0134721G1S2 is 22 mm. The lugs feature a slight downward curve, so it is advisable to use straps with curved ends to ensure a proper fit against the case profile.

For the Chronomat B01 42, the most suitable materials are perforated calf leather for a sporty-vintage aesthetic, brushed alligator for a more formal tone, ballistic nylon NATO to honour its aeronautical heritage, and vulcanised rubber for intensive use. The choice depends on the intended context and the desired chromatic pairing with the dial.

To replace the strap on the Chronomat B01 42, you will need a 1.2 mm springbar tool. Insert the tool into the lug hole or the lateral slot of the spring bar, compress the bar inward and slide the strap free. Take care not to scratch the steel lugs — placing a soft cloth beneath the case as a work surface is strongly recommended.

Yes, there is a wide selection of aftermarket straps compatible with the 22 mm lug width of the Chronomat B01 42. Milano Straps offers handcrafted Italian leather straps in various materials and finishes, made with straight or curved ends as required, all listed on the dedicated 22 mm strap page.

The lifespan of a leather strap depends on material quality, daily wear, and care. A vegetable-tanned calf strap worn daily and kept away from moisture typically lasts 18 to 36 months. Alligator straps with hand-stitched double seams and burnished edges can last over three years when treated with specialist leather conditioners.