Breguet
Classique 5717BR/US/9ZU— lug 18mm

The Breguet Classique 5717BR/US/9ZU is fitted with an 18mm lug width. This is the standard size for this reference and should be measured at the inner opening between the case lugs using a millimeter caliper, not on the outer edge. All compatible 18mm straps are available at milanostraps.it.

For a rose gold Classique 5717BR/US/9ZU, Mississippi alligator leather in polished burgundy finish or midnight blue box-calf represent the most coherent choices with the watch's aesthetic DNA. Alligator in particular creates a visual dialogue with the dial's guilloché, establishing a compelling texture continuity. Casati Milano creates bespoke straps tailored to this model.

The 5717BR/US/9ZU strap is replaced using a fine-tipped spring bar tool, taking care not to scratch the rose gold case lugs. It is recommended to place the watch on a soft cloth and work carefully with the spring bar. When in doubt, it is preferable to entrust the task to a watchmaker or Casati Milano's bespoke service, which includes strap replacement.

Yes. Any strap with 18mm lug width and standard spring bar is technically compatible with the Breguet Classique 5717BR/US/9ZU. Milanostraps.it offers a selection of 18mm straps in leather, alligator and other materials, available both for direct online purchase and made-to-order through the Casati Milano atelier with personalized guidance.

A quality leather strap—alligator or box-calf—on a regularly worn watch has an average lifespan of 18-36 months, varying based on exposure to perspiration, water and heat. Casati Milano artisanal straps are covered by an 18-month warranty against manufacturing defects. Periodic maintenance with a nourishing cream specifically formulated for fine leathers significantly extends strap life and promotes patina development.