Technical Archive

Breguet
Classique 7787BR/29/9V6— lug 18mm

Breguet Classique 7787BR/29/9V6: 18mm strap. Alligator, box calf, shell cordovan and rubber, cut and stitched in Milano. Choose your leather.

Classique 7787 Moonphase Rose Gold / Grand Feu Enamel

Artisanal Note

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

Technical Specifications

Breguet 7787BR/29/9V6
Lug Width
18 mm

The essential strap measurement.

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Reference

7787BR/29/9V6

Movement

Breguet caliber 591DRL Hours, Minutes, Seconds | Moonphase | Power Reserve Indicator

The Heritage

The Breguet Classique 7787BR/29/9V6 features a 39mm rose gold case housing a manually wound calibre 591DRL movement with 3 Hz frequency and power reserve indicator. The dial displays hand-guilloché work, moon phase complication, and small seconds at 6 o'clock. This 18mm lug width model combines Breguet's formal aesthetic with complications valued since the early 19th century, including a moon phase requiring correction every 122 years.

FAQ

What is the lug width of the Breguet Classique 7787BR/29/9V6?

The Breguet Classique 7787BR/29/9V6 is fitted with an 18mm lug width strap. This measurement refers to the internal width between the two lugs of the case, at the point where the strap is attached. Verifying this with a caliper before purchase ensures precise fitting without play.

What is the best strap for the Breguet Classique 7787BR/29/9V6?

For this rose gold reference, alligator with grain carrée finish in cognac, bordeaux, or tobacco tones is the most coherent choice with the dress register of the case. Box calf leather in navy or black offers a more contemporary alternative. The rose gold deployante clasp completes the ensemble while maintaining metallic symmetry with the case.

How do you change the strap on the Breguet Classique 7787BR/29/9V6?

The strap is removed and replaced using a spring bar tool inserted into the lug channel. It is advisable to consult a watchmaker or Casati Milano atelier to avoid scratching the rose gold case. Original Breguet stem springs have a specific diameter: it is preferable to replace them with springs of equal quality.

Are there aftermarket straps compatible with the Breguet Classique 7787BR/29/9V6?

Yes. Any strap with an 18mm attachment and clasp appropriate to the visual weight of the case is compatible. Milano Straps proposes a selection of artisanal leather and fine material straps specifically for 18mm lugs, crafted to quality standards proportionate to the watch's value.

How long does a leather strap last on a Breguet Classique?

A quality alligator or calf leather strap, with regular use and proper maintenance, has an average lifespan of 2-4 years. Perspiration, moisture, and pressure from the deployante or buckle are the main wear factors. Casati Milano straps include an 18-month warranty against manufacturing defects and can be treated with specific products to extend their lifespan.

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