Breguet
Classique 5177BB/2Y/9V6— lug 20mm

The Breguet Classique 5177BB/2Y/9V6 is fitted with a 20mm lug width. This is the standard measurement to reference when purchasing a compatible strap. To verify, use a digital caliper to measure the inner distance between the two lugs at the strap attachment point.

For the white gold case and ivory guilloché dial of the 5177BB/2Y/9V6, the most appropriate strap is smooth alligator—belly or hornback—in midnight blue or cognac brown. The blue complements the blued steel pomme hands, while cognac enhances the warm tone of the dial. Box-calf leather represents an elegant alternative for daily wear.

The strap on the Breguet Classique 5177BB/2Y/9V6 is secured with standard 20mm spring bars. Replacement requires a dedicated lever tool or a thin flat screwdriver to release the bars from the lug slots. It is recommended to have the strap changed by a watchmaker or authorized dealer to avoid scratching the white gold case.

Yes, any strap with a 20mm lug width is technically compatible with the Breguet Classique 5177BB/2Y/9V6. Milano Straps offers a selection of artisanal straps in alligator, calf leather, and other materials specifically designed for high-end dress watches. You can choose from available models online or request a custom strap through the Casati Milano atelier.

The lifespan of a leather strap depends on the material, frequency of use, and care. Quality alligator, with regular use and attention to humidity, typically lasts between 2 and 4 years while maintaining structural and aesthetic integrity. Box-calf develops a prized patina over time but requires greater care around water. Milano Straps straps are covered by an 18-month warranty against manufacturing defects.