Strap for Chronomat B01 42 Triumph Speed Triple RR Roadster

The lug width of the Breitling Chronomat B01 42 (ref. TB01341A1B1P1) is 22 mm. This measurement is consistent across the entire Chronomat B01 42 family and can be verified with a digital calliper placed internally between the lugs on the short strap side. The taper towards the buckle end is typically 20 mm.

For the Chronomat B01 42 in carbon, titanium and red gold, alligator leather in tabac or chocolate brown tones complements the warm reflections of the red gold case in a refined formal pairing. For more active use, vegetable-tanned calf leather in a matte finish or a technical nylon NATO strap references the brand's aviation heritage. A deployant clasp in titanium or black PVD maintains material consistency with the case.

To replace the strap on the Chronomat B01 42, a spring bar tool with a forked tip is required to avoid scratching the titanium and carbon case. The Chronomat's lugs have a characteristic curved geometry: it is advisable to insert the tool from the inner side of the lug, levering towards the centre of the case. Alternatively, a watchmaker or the Casati Milano atelier can perform the swap without risk.

Yes. Any strap with a 22 mm attachment width is compatible with the Chronomat B01 42 without adapters. Milano Straps offers a wide selection of handcrafted 22 mm straps in alligator, calf leather, shell cordovan and nylon, with a standard 20 mm taper towards the buckle. You can browse available models online or commission a bespoke piece through the Casati Milano atelier.

The lifespan of a leather strap depends on frequency of use, exposure to moisture and perspiration, and the quality of the hide. A quality vegetable-tanned calf strap worn daily will typically last 12 to 24 months. Alligator leather or shell cordovan, owing to the density of their fibres, generally last 2 to 4 years with ordinary maintenance. Casati Milano provides an 18-month guarantee against manufacturing defects on all handcrafted straps.