Breguet
Classique 5140BA/29/9W6— lug 18mm

The lug width of the Breguet Classique 5140BA/29/9W6 is 18 mm. This dimension is standard across the 40 mm Classique line and determines the correct strap width to purchase. To confirm the measurement on your specific watch, simply measure the internal distance between the two lugs with a ruler.

For a yellow gold reference like the 5140BA/29/9W6, an alligator crocodile strap in bordeaux or tobacco is the most coherent pairing with the dress aesthetic and haute horlogerie tradition. Alternatively, box grain calf in cognac brown develops a noble patina over time that perfectly complements the guillochéd dial character. A yellow gold buckle or deployant clasp completes the ensemble.

The strap on the Breguet Classique 5140BA/29/9W6 is replaced using a thin-blade screwdriver or spring bar tool. The spring bars are compressed inward to remove the old strap; the new one is inserted into the same slot. The yellow gold lugs require care: it is recommended to cover the case with protective tape to avoid scratches during the operation.

Yes, any strap with an 18 mm lug width is technically compatible with the Breguet Classique 5140BA/29/9W6, provided it uses standard spring bars. On milanostraps.it you will find a selection of artisanal aftermarket straps in various leathers and finishes, made specifically for this width and suited to the elegant profile of this reference.

A quality leather strap — alligator crocodile or box grain calf — mounted on a Breguet Classique 5140BA/29/9W6 has an average lifespan of 2-4 years with regular wear, varying based on exposure to sweat, humidity, and frequency of rotation with other watches. Casati Milano straps are covered by an 18-month warranty against manufacturing defects.