Breguet
Classique 7137BB/11/9V6— lug 18mm

The lug width of the Breguet Classique 7137BB/11/9V6 is 18 mm, measured internally between the two lugs according to ISO standard. For precise verification on your specific watch, a digital caliper positioned parallel to the case without compressing the finished surfaces is recommended. The curved lugs on this model require straps with curved ends to ensure proper fit to the case.

For the Classique 7137BB/11/9V6 in white gold, porosus crocodile or hornback leather in smooth finish is the most coherent choice with the watch's neoclassical architecture. Bordeaux sang de boeuf or midnight blue are the most suitable colors to enhance the guilloché ivory dial and blued steel pomme hands. Polished box-calf leather is a refined alternative for those preferring a more discreet strap presence.

Strap replacement on the Breguet Classique 7137BB/11/9V6 is performed using standard 18 mm spring bars. A fine-tipped springbar tool is recommended to avoid scratching the white gold lugs. Given the precious nature of the case material, it is advisable to have the operation performed by a watchmaker or the Casati Milano atelier, or to use the installation service included with certain Milano Straps.

Yes, aftermarket straps compatible with the Breguet Classique 7137BB/11/9V6 exist, provided they respect the 18 mm lug width and feature curved ends to adapt to the curvature of the original lugs. Milano Straps offers a selection of 18 mm premium leather straps and bespoke creations through the Casati Milano atelier, with materials and finishes equivalent to Maison standards.

The lifespan of a leather strap depends on the material, care, and frequency of use. A high-quality alligator strap, properly maintained and rotated with other straps, can last 3 to 5 years while maintaining an impeccable appearance. Box-calf leather develops a characteristic patina over time but is more sensitive to humidity. Casati Milano guarantees their 18 mm straps for 18 months against manufacturing defects and provides personalized maintenance guidance.