Strap for Chronomat B01 42 Stainless Steel / Red Gold / Blue / Rouleaux

The lug width of the Breitling Chronomat B01 42 UB0134101C1U1 is 22 mm. This measurement refers to the internal distance between the two lugs on the case, which is the point where the strap attaches. Any standard 22 mm strap is compatible without modification.

For the two-tone Red Gold and Stainless Steel version, a vegetable-tanned alligator strap in tobacco brown or cognac offers the best balance between elegance and material coherence. For more active use, vegetable-tanned calf leather or vulcanised rubber are technically sound and durable alternatives.

The strap is replaced using a flat-tipped or fork-style spring bar tool, inserted into the small hole on the lug. The spring bar is compressed and removed laterally, the old strap is slid out, and the new strap is fitted by compressing the spring bar into place. No professional tools are required, though working on a soft surface is recommended to protect the case.

Yes. Any strap with a 22 mm attachment width is compatible with the Breitling Chronomat B01 42 UB0134101C1U1. Milano Straps offers a curated selection of handcrafted leather, NATO and rubber straps made specifically for this size, with finishes suited to the two-tone case.

The lifespan of a leather strap depends on material quality and how it is cared for. A vegetable-tanned leather strap of good quality, kept dry and treated periodically with neutral wax, typically lasts between two and four years with daily wear. Frequent exposure to perspiration or water significantly reduces the leather's life; in such cases, alternating straps or opting for rubber or NATO is advisable.