Strap for HMS1

The lug width (distance between the lugs) of the Arnold & Son Royal Collection 1LCAP.S10A.C110A is precisely 20mm. This measurement must be verified internally, positioning a calliper between the inner shoulders of the lugs, with no tolerance for variation. Straps of different dimensions will not fit correctly onto the case.

For the Royal Collection in rose gold, alligator leather represents the most aesthetically and qualitatively coherent choice. The natural texture of the skin engages elegantly with the warmth of rose gold. Alternatively, vegetable-tanned calf leather offers artisanal authenticity, whilst heavy cotton NATO straps are recommended for more dynamic use whilst maintaining formality.

Strap replacement on watches with shouldered lugs (spring bar attachment) is accomplished using a dedicated spring bar remover tool. Position the tool gently beneath the small elastic pin securing the strap to the case, apply light downward pressure until the pin releases, remove the old strap and insert the new one, aligning it with the lugs. This operation is best performed by a qualified watchmaker to prevent damage to the rose gold case.

Any strap with a 20mm lug width is compatible with the Arnold & Son Royal Collection 1LCAP.S10A.C110A. Solutions are available online in alligator, shell cordovan, vegetable-tanned leather, cotton NATO and technical rubber. It is essential to verify that the strap features a deployante or buckle appropriate for rose gold, to protect the precious metal from scratching.

A high-quality leather strap (alligator or calf) has an average lifespan of 3–5 years under daily use conditions. This variability depends on exposure to moisture, perspiration, UV rays and frequency of wear. Vegetable tanning ages more nobly, whilst industrial tannages may degrade more rapidly. A deployante in precious metal reduces leather wear, extending the strap's operational life.