Strap for Breitling Chronomat Automatic GMT 40 NFL Baltimore Ravens Edition

The lug width of the Breitling Chronomat 40 GMT reference A32398D31Q1A1 is 20mm. This measurement refers to the internal distance between the lugs at the point where the strap attaches. It is advisable to verify this with a calliper before purchasing an aftermarket strap.

For the Breitling Chronomat 40 GMT, a polished alligator strap is the most elegant choice, whilst vegetable-tanned calf leather is ideal for daily wear due to the patina it develops over time. For sporting contexts, vulcanised rubber or technical nylon NATO straps offer durability and comfort. A deployant clasp in polished steel enhances aesthetic coherence with the original case.

To replace the strap on the Breitling Chronomat 40 GMT, a dedicated spring bar tool (pry tool or forked pin remover) is required. Insert the tool into the spring bar seat between the lug and the strap, compressing the ends to release the mechanism. Care must be taken not to scratch the steel lugs; if in doubt, it is best to consult a watchmaker or the Casati Milano atelier.

Yes, any strap with a standard 20mm lug width and spring bar fitting is compatible with the Breitling Chronomat 40 GMT A32398D31Q1A1. Milanostraps.it offers a selection of handcrafted leather, rubber, and textile straps specifically tested for this diameter. It is also important to check the overall length and buckle width (typically 18mm) for a correct fit.

The lifespan of a leather strap depends on the material, care, and frequency of use. A quality vegetable-tanned calf leather strap, kept away from water and treated periodically with nourishing cream, typically lasts between 2 and 4 years with daily wear. A high-grade alligator strap, rotated with other straps, can last over 5 years. Casati Milano straps come with an 18-month warranty against manufacturing defects.