Strap for Cockpit B55 Connected Prototype

The lug width of the Breitling Professional B55 Connected is 24mm. This is the correct measurement to use when purchasing aftermarket straps. It is always advisable to confirm the internal distance between the lugs with a calliper before ordering.

Given the 46mm titanium case and the instrument-grade character of this model, the most suitable options are: vegetable-tanned calf leather for versatile everyday wear, black or anthracite alligator for formal settings, technical nylon NATO for aeronautical heritage consistency, and vulcanised rubber for sport or humid environments. A satin titanium deployant clasp effectively completes any pairing.

The strap on the Breitling Professional B55 Connected is removed using a flat-head screwdriver or a dedicated springbar tool, applying leverage against the springbar inside the lug. The process does not require specialist watchmaking skills, but it is advisable to rely on a watchmaker or specialist atelier to avoid scratching the titanium case.

Yes. Any strap with a 24mm lug width is technically compatible with the Breitling Professional B55 Connected. Milano Straps offers a curated selection of handcrafted leather, NATO and rubber straps in 24mm, made in Italy using selected materials, with a bespoke personalisation service available through the Casati Milano atelier.

The lifespan of a leather strap depends on the quality of the tanning process, maintenance routine and frequency of use. A good-quality vegetable-tanned calf strap, with daily wear and proper care (conditioning cream every 3–4 months, avoiding prolonged contact with water), typically lasts 2–4 years. Alligator straps tend to have a longer service life thanks to the natural density of the scale structure, developing a distinctive patina over time.