Technical Archive

Breguet
Classique 7727BB/12/9WU— lug 18mm

Breguet Classique 7727BB/12/9WU: 18mm strap. Alligator, box calf, shell cordovan and rubber, cut and stitched in Milano. Choose your leather.

Classique Chronométrie 7727 White Gold / Silver

Artisanal Note

"This model requires a precise 18mm lug width to preserve the original sartorial balance."

Technical Specifications

Breguet 7727BB/12/9WU
Lug Width
18 mm

The essential strap measurement.

Browse 18mm straps →
Reference

7727BB/12/9WU

Movement

Breguet caliber 574DR Hours, Minutes, Small Seconds | Power Reserve Indicator

The Heritage

The Breguet Classique 7727BB/12/9WU features a 41mm white gold case paired with a silver dial, representing the brand's formal language codified by Abraham-Louis Breguet. It houses the automatic Breguet 574DR caliber, displaying hours, minutes, small seconds at 6 o'clock, and power reserve. The case features hand-guilloché-executed dial, blued steel Breguet hands, and signature engraving. The strap width is 18mm, designed for the case geometry with a gentle concave curvature toward the wrist.

FAQ

What is the lug width of the Breguet Classique 7727BB/12/9WU?

The Breguet Classique 7727BB/12/9WU is fitted with an 18mm lug width. This measurement is taken with a digital caliper between the two lugs of the case and is essential for choosing the correct replacement strap. All compatible straps are available in the 18mm section of Milano Straps.

What is the best strap for the Breguet Classique 7727BB/12/9WU?

For the Breguet Classique 7727BB/12/9WU in white gold, the most coherent pairing with the neoclassical language of the guilloché dial is a smooth black or dark brown Nile alligator strap, matte finish, with matching stitching and thin profile. Box-calf leather is a more minimalist tailored alternative. A silver-plated or 18k white gold buckle or deployant ensures metallic coherence with the case.

How do you change the strap on a Breguet Classique 7727BB/12/9WU?

The strap on the Breguet Classique 7727BB/12/9WU is secured with standard 18mm springbars. For replacement, a fine-tipped springbar tool is sufficient to remove the attachment bars from the case lugs. Maximum care is recommended to avoid scratching the white gold finish: a soft cloth under the case during the operation is essential. If in doubt, Casati Milano offers a strap replacement service at their atelier.

Are there aftermarket straps compatible with the Breguet Classique 7727BB/12/9WU?

Yes. Any strap with an 18mm attachment is technically compatible with the Breguet Classique 7727BB/12/9WU. Milano Straps offers a selection of artisanal leather, alligator, and calf straps specifically classified for 18mm lug width, crafted with finishes consistent with fine watchmaking aesthetics. It is not necessary to purchase the original Breguet strap to maintain an equivalent quality pairing.

How long does a leather strap last on a Breguet Classique 7727BB/12/9WU?

The lifespan of a leather strap depends on the material and daily use. Quality alligator, with proper care — rotation with other straps, limited exposure to humidity and perspiration — can last 3 to 5 years while maintaining a noble patina. Box-calf leather has an average useful life of 2-3 years. Milano Straps offers an 18-month warranty on manufacturing defects on all Casati Milano straps.

The next step

The right strap isn’t chosen. It is built, together.

From the atelier appointment to delivery, every step is made for those who know that things done well take time. Rare leathers, one piece at a time, eighteen months of warranty.

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By appointment only · Milan

The atelier's website: casatimilano.com