Arnold & Son
Royal Collection 1H6AP.D07A.C60B— lug 20mm

The lug width is 20 mm, which refers to the internal spacing between the case lugs (metal bars protruding from the watch case). Any compatible strap must be specifically designed for this width to ensure a proper fit and prevent mechanical play. Accurate measurement is essential to maintain both aesthetic harmony and functional integrity of the buckle system.

Alligator leather in dark tones—such as chocolate brown or deep black—represents the most coherent choice for this timepiece's formal identity. The fine grain of the skin dialogues perfectly with the 47 mm rose gold case, amplifying the effect of understated luxury. Alternatively, shell cordovan in vegetable tanning offers natural patina and progressive brilliance, ideal for those seeking character and individuality.

Strap replacement requires specific tools, such as a spring bar tool, to remove the metal pins from the case. Position the watch on a soft surface, locate the lug holes, and gently insert the tool to compress the pin ends until the strap is released. This is a delicate operation: if you lack experience, consult a professional watchmaker to avoid scratching the case.

Yes, any strap with a 20 mm lug width is mechanically compatible. However, aesthetic compatibility depends on your material and colour selection. Refer to the recommended colour guidelines—dark alligator, aged calf, satin rubber—to maintain visual coherence with the rose gold case and the 47 mm case proportions.

A high-quality alligator or shell cordovan strap, with regular use and proper maintenance (protection from excessive water and humidity), typically lasts 3–5 years before requiring replacement. Lifespan depends on intensity of use, frequency of moisture exposure, and cleaning routine. A sound investment in premium leather significantly extends service life.