Breitling
Chronomat 40 GMT A32398B11L1A1— lug 20mm
Breitling Chronomat 40 GMT A32398B11L1A1: 20mm strap. Alligator, box calf, shell cordovan and rubber, cut and stitched in Milano. Choose your leather.
Artisanal Note
"This model requires a precise 20mm lug width to preserve the original sartorial balance."
Technical Specifications
Breitling A32398B11L1A1The essential strap measurement.
Browse 20mm straps →A32398B11L1A1
Breitling caliber Caliber 32 Hours, Minutes, Seconds, Additional 24 Hour Hand (adjustable) | Date
The Heritage
Compatible Straps
Selected for the 20mm lug width of the Chronomat 40 GMT
FAQ
What is the lug width of the Breitling Chronomat 40 GMT A32398B11L1A1?
The lug width of the Breitling Chronomat 40 GMT A32398B11L1A1 is 20mm. This measurement is consistent across the entire Chronomat 40 GMT range and determines compatibility with any aftermarket or bespoke 20mm strap.
What is the best strap for the Breitling Chronomat 40 GMT?
For the Chronomat 40 GMT, a vegetable-tanned alligator or shell cordovan strap represents the most fitting choice for the watch's professional character. For intensive daily wear, a matte calf leather strap with a 20/18mm taper or a shaped rubber strap offers durability and comfort without compromising aesthetics.
How do you change the strap on a Breitling Chronomat 40 GMT?
The strap on the Chronomat 40 GMT is secured by standard 20mm springbars. A springbar tool — either a fork-style or pin tool — is all that is required to lever against the lug and release the bars. No watchmaker intervention is necessary, though care should be taken to avoid scratching the case during the process.
Are there aftermarket straps compatible with the Breitling Chronomat 40 GMT A32398B11L1A1?
Yes. Any aftermarket strap with a 20mm lug width is compatible with the Breitling Chronomat 40 GMT A32398B11L1A1. Milano Straps offers a curated selection of handcrafted leather, NATO and rubber straps in the 20mm size, with bespoke options available through Atelier Casati Milano.
How long does a leather strap last on a Breitling Chronomat 40 GMT?
The lifespan of a leather strap depends on the type of leather and frequency of wear. A quality alligator or shell cordovan strap, properly maintained — cleaned regularly and kept away from prolonged water exposure — can last between 3 and 7 years. Vegetable-tanned straps develop a patina over time, improving aesthetically with use. Casati Milano offers an 18-month warranty against manufacturing defects.