Technical Archive

Breguet
Marine 5557BR/YS/RW0— lug 20mm

Breguet Marine 5557BR/YS/RW0: 20mm strap. Alligator, box calf, shell cordovan and rubber, cut and stitched in Milano. Choose your leather.

Marine Hora Mundi 5557 Rose Gold / Blue / Bracelet

Artisanal Note

"This model requires a precise 20mm lug width to preserve the original sartorial balance."

Technical Specifications

Breguet 5557BR/YS/RW0
Lug Width
20 mm

The essential strap measurement.

Browse 20mm straps →
Reference

5557BR/YS/RW0

Movement

Breguet caliber 77F1 Day / Night Indication, Hours, Minutes, Seconds, World Time | Date

The Heritage

The Marine 5557BR/YS/RW0 features the Breguet 77F1 caliber with hour, minute, second, date and day/night indication functions. The watch integrates a world time complication for the display of multiple time zones. The case is made of rose gold with a rubber strap.

FAQ

What is the lug width of the Breguet Marine 5557BR/YS/RW0?

The Breguet Marine 5557BR/YS/RW0 is fitted with a 20mm lug width. This measurement should be taken inside the case lugs with a caliper to ensure precise compatibility with replacement straps.

What is the best strap for the Breguet Marine 5557BR/YS/RW0?

For the rose gold version of the Breguet Marine 5557BR/YS/RW0, an alligator strap in lisse or semi-gloss finish in cognac brown or burgundy tones is the most coherent choice. Alternatively, box-calf leather develops a patina over time that enhances the warm tone of the case.

How do you change the strap on a Breguet Marine 5557BR/YS/RW0?

Strap changes on the Breguet Marine 5557BR/YS/RW0 are accomplished using standard 20mm spring bars. A dedicated padded-tip spring bar tool is recommended to avoid scratching the rose gold lugs. If unsure, it is preferable to contact a watchmaker or Casati Milano service.

Are there aftermarket straps compatible with the Breguet Marine 5557BR/YS/RW0?

Yes. 20mm aftermarket straps compatible with the Breguet Marine 5557BR/YS/RW0 are available on milanostraps.it in various materials and finishes. For the curved lugs of the Marine model, straps with curved ends or soft leather that adapts to the case profile are recommended.

How long does a leather strap last on a Breguet Marine 5557BR/YS/RW0?

The lifespan of a leather strap depends on the quality of tanning, frequency of use, and exposure to moisture and perspiration. A high-quality artisanal alligator or calf leather strap, used with care and rotated regularly, can last three to five years while maintaining structural and aesthetic integrity. Casati Milano straps are covered by an 18-month warranty against manufacturing defects.

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