Technical Archive

Breguet
Classique 5178BB/29/9V6/D000— lug 18mm

Breguet Classique 5178BB/29/9V6/D000: 18mm strap. Alligator, box calf, shell cordovan and rubber, cut and stitched in Milano. Choose your leather.

Classique 5178 White Gold / White Enamel

Artisanal Note

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

Technical Specifications

Breguet 5178BB/29/9V6/D000
Lug Width
18 mm

The essential strap measurement.

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Reference

5178BB/29/9V6/D000

Movement

Breguet caliber 777Q Hours, Minutes, Seconds | Date

The Heritage

The Breguet Classique 5178BB/29/9V6/D000 is a white gold wristwatch with a 38 mm diameter case housing the Caliber 777Q movement, displaying hours, minutes, seconds, and date. The model belongs to the Classique line and features a hand-guilloché dial with blued steel Breguet hands. The watch lug width is 18 mm, characteristic of classical watchmaking proportions.

FAQ

What is the lug width of the Breguet Classique 5178BB/29/9V6/D000?

The Breguet Classique 5178BB/29/9V6/D000 is fitted with an 18mm lug width. This measurement should be specified when purchasing any replacement strap compatible with this reference.

What is the best strap for the Breguet Classique 5178BB/29/9V6/D000?

For the white gold case of the Classique 5178, a black or midnight blue alligator lisse strap represents the most coherent choice with the house's aesthetic DNA. Alternatively, tobacco brown box-grain calf develops an authentic patina that balances the chromatic neutrality of the white gold. All materials should have contained thickness to respect the refined profile of the case.

How do you change the strap on the Breguet Classique 5178BB/29/9V6/D000?

The strap is removed using a fine-tipped spring bar tool, gently leveraging the spring bar housed in the lugs. The lugs on the Classique 5178 are curved and require care to avoid scratching the white gold case. It is advisable to work on a soft surface and, if in doubt, consult a watchmaker or the Casati Milano atelier.

Are there aftermarket straps compatible with the Breguet Classique 5178BB/29/9V6/D000?

Yes. Any 18mm strap with standard spring bar attachment is technically compatible with the Breguet Classique 5178BB/29/9V6/D000. Milano Straps offers a selection of 18mm straps in various materials and finishes, including bespoke artisanal models crafted by the Casati Milano atelier with carefully selected leathers.

What is the lifespan of a leather strap on a Breguet Classique 5178BB/29/9V6/D000?

A quality alligator or calf strap, with daily use and proper maintenance, has an average lifespan of 18 to 36 months. Longevity depends on exposure to perspiration, humidity, and direct sunlight. Casati Milano straps are covered by an 18-month warranty against manufacturing defects and are crafted with carefully selected leathers that ensure durability and patina development over time.

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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The atelier's website: casatimilano.com