Technical Archive

Breguet
Classique 5277BB/12/9V6— lug 18mm

Breguet Classique 5277BB/12/9V6: 18mm strap. Alligator, box calf, shell cordovan and rubber, cut and stitched in Milano. Choose your leather.

Classique 5277 White Gold / Silver

Artisanal Note

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

Technical Specifications

Breguet 5277BB/12/9V6
Lug Width
18 mm

The essential strap measurement.

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Reference

5277BB/12/9V6

Movement

Breguet caliber 777Q Hours, Minutes, Seconds | Date

The Heritage

The Breguet Classique 5277BB/12/9V6 features a 38 mm white gold case with a hand-guillochéed dial executed using the rose engine technique, paired with blued pomme hands and Arabic numerals. The watch is powered by the Breguet 777Q calibre, a manual-winding manufacture movement with approximately 55 hours of power reserve and a silicon escapement wheel. The 18 mm lug width accommodates replacement straps, typically tapering to 16 mm at the buckle, allowing for daily versatility while maintaining the dress watch proportions of this Classique family timepiece.

FAQ

What is the lug width of the Breguet Classique 5277BB/12/9V6?

The Breguet Classique 5277BB/12/9V6 is fitted with a strap with an 18 mm lug width measured at contact with the case. The original strap is typically tapered, meaning it narrows to 16 mm at the buckle, to maintain the visual fluidity characteristic of the Classique line. To purchase a compatible aftermarket strap, simply select the 18 mm size.

What is the best strap for the Breguet Classique 5277BB/12/9V6?

For a Breguet Classique 5277BB/12/9V6 in white gold, the most suitable strap is alligator belly with fine grain, in midnight blue or slate gray, to complement the blued pomme hands and the sobriety of the case. Box calf in light cognac or black is an alternative for those preferring a less structured profile. In both cases, a tapered 18/16 mm strap with subtle contrasting stitching is recommended.

How do you change the strap on the Breguet Classique 5277BB/12/9V6?

The strap on the Breguet Classique 5277BB/12/9V6 is fixed to the lugs via standard 18 mm spring bars. For replacement, a dedicated fork screwdriver or lug lever tool is sufficient, available from any watchmaker. It is recommended to entrust the operation to a professional to avoid scratches on the white gold case, a material particularly sensitive to unprotected metal tools.

Are there aftermarket straps compatible with the Breguet Classique 5277BB/12/9V6?

Yes, the Breguet Classique 5277BB/12/9V6 uses standard 18 mm spring bars, so it is fully compatible with aftermarket straps from any manufacturer that respects this measurement. Milano Straps offers a selection of 18mm artisanal straps in alligator, calf, and rubber. Casati Milano also creates bespoke custom straps with leather selected directly in the atelier in Milan.

How long does a leather strap last on a Breguet Classique 5277BB/12/9V6?

The lifespan of a leather strap depends on the quality of the tanning, frequency of use, and exposure to moisture and sweat. A high-quality alligator strap, used intermittently and stored correctly, maintains structural integrity and patina for 3-5 years. Box calf tends to develop a characteristic patina over time, which many enthusiasts consider an aesthetic merit. Casati Milano offers an 18-month warranty on manufacturing defects for all straps made in the atelier.

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