Strap for B55 Exospace Black Titanium / Black / TwinPro Anthracite / Folding

The Exospace B55 Connected is equipped with integrated lugs measuring 24mm in width. This dimension is standard on large-diameter aviation chronographs (46mm) and ensures compatibility exclusively with straps specifically manufactured for this measurement. Always verify the internal lug width before purchasing a replacement strap.

For the Exospace B55 Connected, leather straps in alligator with vegetable tanning (developing natural grey patina), cordovan burgundy, NATO in Graphite Cordura, or FKM rubber are ideal. Selection depends on use case: professional pilots prefer NATO or rubber for practicality, whilst civilian contexts favour alligator or cordovan. Minimum structural thickness should be 4.5mm for visual proportion on a 46mm case.

The Exospace features fixed integrated lugs. Use a spring bar tool or small flathead screwdriver to remove the elastic pins from inside the lugs. Extract the existing strap by inserting the pin into the new strap (ensure it is 24mm width). Should you prefer to avoid risk of damage, contact Atelier Casati Milano for professional strap replacement by experienced craftspeople.

Yes, but with discernment. The aftermarket strap must be certified 24mm lug width and constructed with structural thickness consistent with the watch (minimum 4.5mm for visual balance). Verify that the new strap features keepers or positioning hooks on the reverse to prevent rotation during flight operations. Milano Straps offers a comprehensive collection of 24mm straps tested on aviation chronographs.

A vegetable-tanned alligator or cordovan strap on an Exospace 46mm (significant titanium weight) guarantees 4-6 years of intensive daily use due to leather structural density. Longevity varies based on climate (humidity accelerates ageing), personal perspiration and cleaning frequency. Casati Milano straps include 18-month warranty against manufacturing defects and premature wear.