Breguet
Héritage 5497PT/12/9V6— lug 18mm

The Breguet Héritage 5497PT/12/9V6 is fitted with an 18mm lug width. This measurement is taken with a digital caliper between the two lugs at the innermost point with the case closed. It is essential to verify this measurement before purchasing any aftermarket strap, even if the reference is known.

For the platinum case and guilloché dial of the 5497PT, the most suitable strap is hornback alligator with a brilliant grain finish, in cognac, tobacco, or polished black tones. The alligator's three-dimensional texture echoes the interplay of surfaces characteristic of Breguet's guilloché work. For a more contemporary aesthetic, embossed calfskin in slate grey or navy offers considerable elegance.

Replacement is accomplished using standard 18mm springbars housed in the case lugs. A fine-tipped springbar tool is sufficient to compress the bars and release the strap. It is recommended to work on a soft surface to avoid scratching the platinum case, which is particularly susceptible to abrasions. For Casati Milano straps, the team provides detailed instructions via WhatsApp.

Yes. Any strap with an 18mm attachment and standard springbars is technically compatible with the Breguet Héritage 5497PT/12/9V6. Milanostraps.it offers a selection of artisanal 18mm straps—in alligator, calfskin, and nylon—designed to respect the proportions of the 35mm tonneau case and the haute horlogerie positioning of the piece.

Durability depends on material and usage. A quality alligator strap, with alternating use across multiple watches, maintains its shape and patina for 3–5 years. Calfskin typically has a shorter lifespan, between 1 and 3 years, but develops a personal patina highly appreciated by enthusiasts. Casati Milano straps are covered by an 18-month warranty against manufacturing defects.