Arnold & Son
Royal Collection 1LCAP.S05A.C111A— lug 20mm
Arnold & Son Royal Collection 1LCAP.S05A.C111A: 20mm strap. Alligator, box calf, shell cordovan and rubber, cut and stitched in Milano. Choose your leather.
Artisanal Note
"This model requires a precise 20mm lug width to preserve the original sartorial balance."
Technical Specifications
Arnold & Son 1LCAP.S05A.C111AThe essential strap measurement.
Browse 20mm straps →1LCAP.S05A.C111A
Arnold & Son caliber A&S1001 Hours, Minutes, Small Seconds
The Heritage
Compatible Straps
Selected for the 20mm lug width of the Royal Collection
FAQ
What is the lug width of the Arnold & Son Royal Collection 1LCAP.S05A.C111A?
The lug width is 20 millimetres. This measurement represents the space between the two lugs of the case where the strap attaches. You can verify it by placing a ruler across the lugs, excluding the case curve: any 20mm strap will be perfectly compatible with this model.
Which strap is most suitable for the Arnold & Son Royal Collection 1LCAP.S05A.C111A?
The ideal strap depends on usage: for formal occasions, we recommend alligator in black or cognac, or shell cordovan in burgundy. For smart-casual, vegetable-tanned calf in siena tonality creates chromatic harmony with the rose gold case. For versatility, a NATO in blue or black offers grip and functionality. FKM rubber represents the superior technical choice for outdoor activities.
How do you change the strap on the Arnold & Son Royal Collection?
Remove the watch from your wrist. Using a spring bar tool, insert the flat end between the lug and strap, pressing gently downward to release the internal spring. Repeat on the other side. Remove the old strap. Insert the new one by aligning the spring bar hole, then press upward until the spring locks into position again.
Must the strap be original Arnold & Son?
No. High-quality aftermarket straps, such as those selected by Milano Straps in 20mm, often offer superior construction quality and more precious materials compared to stock straps. What matters is that the lug width is exactly 20mm and the strap is crafted from noble materials—vegetable-tanned leather, alligator, shell cordovan, or FKM rubber.
How long does a leather strap last on a watch like the Arnold & Son Royal Collection?
A quality leather strap (alligator, vegetable-tanned calf, shell cordovan) lasts on average 3–5 years if worn daily, up to 10–12 years if used occasionally. Longevity depends on humidity exposure, temperature fluctuations, cleaning frequency, and care. FKM rubber has superior durability (7–10 years of intensive use) thanks to chemical and thermal resistance.