Strap for Chronomat B01 42 Six Nations / England

The Breitling Chronomat B01 42 AB0134A71A1A1 features a lug width of 22mm. This measurement should be taken with a digital calliper between the two lugs on the 6 o'clock side, measuring the internal free distance. Compatible straps require a 22mm head width; the taper at the buckle end is typically 20mm.

The ideal strap depends on the intended use. For formal or business wear, a smooth-belly alligator strap in cognac or tobacco tones complements the steel bezel. For daily use, vegetable-tanned calf leather in brown or black develops an elegant patina over time. For sport and aquatic environments, vulcanised rubber ensures waterproofness and grip. A woven nylon NATO strap is the most versatile option for quick changes.

The Chronomat B01 42 features drilled-through lugs, meaning the spring bars pass through holes in the lugs themselves. To remove the original strap, use a fine-tipped spring bar tool or a small flathead screwdriver: compress the internal spring of the bar and slide the strap free. The operation requires no specialised tools but should be carried out carefully to avoid scratching the steel lugs.

Yes. Any strap with a 22mm attachment width is technically compatible with the Breitling Chronomat B01 42 AB0134A71A1A1. Milano Straps offers a selection of handcrafted 22mm straps specifically tested on this model, available in alligator, calf leather, rubber and NATO. For a fully bespoke strap, Casati Milano atelier offers a made-to-measure service by appointment.

The lifespan of a leather strap depends on material quality, frequency of use and care. A quality vegetable-tanned calf strap worn daily typically lasts 18 to 24 months before showing structural wear at the fold. An alligator strap, more resistant to perspiration thanks to its natural grain texture, can last 3 to 5 years with periodic conditioning using a neutral cream. Avoiding prolonged exposure to water and direct heat significantly extends strap life.