Breguet
Classique 5177BB/29/BV0— lug 18mm

The Breguet Classique 5177BB/29/BV0 is fitted with an 18 mm lug width. This measurement is verified by inserting a ruler into the internal lug space where the spring bar sits. All 18mm compatible straps are available on milanostraps.it.

For this white gold reference with guilloché dial, a smooth alligator strap (lisse) is the most aesthetically coherent choice. The regular grain of alligator belly harmonizes with the geometric decoration of the dial without overwhelming it. For less formal wear, box-calf leather with natural patina is a refined and durable alternative.

Strap replacement requires a fine-pointed spring bar tool. Insert the tool into the lateral lug slot to compress the spring bar and remove the strap. This operation is delicate on gold cases: it is recommended to protect surfaces with a soft cloth, and in case of uncertainty, consult a watchmaker or Casati Milano atelier.

Yes. Any strap with an 18 mm lug width is technically compatible. Milano Straps offers a selection of artisanal 18mm straps in alligator, calf leather and other materials, made with standard spring bars. For bespoke finishing with selected leather and personalized buckle, the Casati Milano bespoke service is available by appointment.

The lifespan of a leather strap depends on tanning quality, daily use, and exposure to perspiration and humidity. Top-grade alligator, with vegetable tanning and hand finishing, can last 3 to 6 years with ordinary care. Box-calf leather has a similar average lifespan. Milano Straps offers an 18-month warranty on manufacturing defects for all Casati Milano straps.