Arnold & Son
Royal Collection 1LCAP.S04A.C110A— lug 20mm

The lug width of the Arnold & Son Royal Collection 1LCAP.S04A.C110A is precisely 20 mm. This measurement represents the internal distance between the two lugs of the case and determines strap compatibility. It is essential to verify this dimension with a digital calliper before purchasing an aftermarket strap, as any deviation would result in inadequate fit and compromise both wearing comfort and the overall aesthetics of the timepiece.

For the Arnold & Son Royal Collection 1LCAP.S04A.C110A in rose gold, we recommend a dark brown or tobacco alligator strap for formal occasions, as it emphasises the warm tonal qualities of the case. If you prefer a more refined alternative, cognac shell cordovan offers a patina that evolves over time and superior resistance to wear. For daily use, a NATO strap in canvas or a black rubber model provides practicality without sacrificing elegance. Vegetable-tanned leather represents a conscientious choice for those who value sustainability and appreciate the aesthetic evolution of the material.

To change the strap on the 1LCAP.S04A.C110A, remove the spring bars using a dedicated tool or a thin flat lever. Position the watch with the case facing upwards, locate the small spring bars connecting the strap to the lugs, and apply gentle downward pressure to release them. Once freed, the original strap detaches easily. Insert the new strap by aligning the holes with the lugs and reinsert the spring bars until you hear a clicking sound. Verify that the strap is symmetrically positioned relative to the case before wearing the watch.

Any strap with a 20 mm lug width is compatible with the 1LCAP.S04A.C110A. This includes straps in alligator, calf leather, shell cordovan, vegetable-tanned leather, NATO canvas, vulcanised rubber and synthetic fabrics. Compatibility is guaranteed by matching the lug width: the key is to verify that the strap is specifically dimensioned for 20 mm. We recommend selecting high-quality straps that respect the construction standards of the timepiece, as the rose gold case deserves an appropriate aesthetic and functional accompaniment.

The lifespan of a leather strap depends on the material, frequency of use and environmental conditions. A high-quality alligator or calf leather strap typically lasts 3-5 years of daily wear before requiring replacement, whilst shell cordovan can exceed 5-7 years thanks to its dense fibrous structure. Vegetable-tanned leather tends to develop a patina as it ages, maintaining functionality beyond 5 years. Exposure to moisture, perspiration and direct sunlight accelerates the ageing process. To extend durability, we recommend rotating multiple straps, storing them away from direct light and occasionally applying a water-repellent cream specifically formulated for fine leathers.