Strap for HMS1

The lug width is 20mm. This measurement represents the distance between the case lugs and determines strap compatibility. Accurate measurement is essential to avoid excessive play or damaging tension on the strap.

Black or dark brown alligator is the most conservative choice, emphasising the neoclassical architecture of the white gold case. Shell cordovan is an alternative for those seeking natural patina. Vegetable-tanned calf offers softness and wrist adaptability whilst maintaining formal elegance.

Strap changes require specialist tools (spring bar tools or strap lugs). We recommend contacting a professional watchmaker or Casati Milano, our reference atelier, to ensure the operation does not damage the white gold lugs.

Yes, aftermarket straps with a 20mm lug width are compatible. It is essential that the strap is manufactured by qualified artisans capable of respecting precise manufacturing tolerances and leather thickness at the lug attachment points.

A high-quality leather strap (alligator, shell cordovan, calf) typically lasts 3–5 years with regular use and proper care. Durability depends on tanning quality, climate exposure, and maintenance. A well-made strap develops character over time, with natural patina that increases aesthetic value.