Breguet
Marine 5547BB/Y2/5ZU— lug 20mm

The Breguet Marine 5547BB/Y2/5ZU is fitted with a 20mm lug width, measured on the inside between the two parallel lugs of the white gold case. To verify the measurement, a digital caliper positioned at the narrowest point of the lug, where the spring bar of the strap is inserted, is sufficient.

For the white gold case and guilloché dial of the Marine 5547BB/Y2/5ZU, the most suitable straps are smooth midnight blue or burgundy alligator for formal occasions, vulcanized rubber for sports and nautical use, and taurillon leather with leather finishing for hybrid occasions. A navy nylon NATO is a choice consistent with the marine DNA of the piece.

Strap replacement is done via the spring bars that connect the strap to the lugs of the case. With a dedicated lever tool — commonly called a springbar tool — the spring bars are compressed and the strap is removed without risking scratching the white gold surfaces. For a model in this category, it is recommended to rely on a watchmaker or the Casati Milano atelier for the operation.

Yes. The Breguet Marine 5547BB/Y2/5ZU uses a standard attachment system with a 20mm lug width and conventional spring bars, making a wide range of high-quality aftermarket straps compatible. Milano Straps offers artisanal 20mm straps custom-made or available ready to ship, with materials and finishes selected to match the white gold case of the Marine.

The lifespan of a leather strap depends on the quality of the leather, daily care, and exposure to sweat and humidity. A strap in first-rate alligator or calf leather, with wax edging and reinforced stitching, can last from 18 months to over 3 years with regular use. Casati Milano straps include an 18-month warranty against manufacturing defects. To maximize durability, it is recommended to alternate multiple straps and avoid prolonged contact with water.