Strap for TE8

The lug width of the Arnold & Son Royal Collection 1SJAW.B02A.C113A is 20mm. This measurement represents the internal distance between the two lugs of the case and is the critical parameter for aftermarket strap compatibility. When measured with a digital calliper from the inner face of one lug to the other, it maintains manufacturing tolerances of ±0.2mm, a standard certified by Arnold & Son.

For the Royal Collection 1SJAW.B02A.C113A, we recommend taupe brown or black alligator for formal occasions, offering sophisticated contrast with the ruthenium white gold. Vegetable-tanned calf leather in black represents a versatile alternative, developing grey-slate patina over time. For sports wear, NATO cotton or vulcanised rubber straps protect the case from torsional stress, maintaining functional stability during intensive activities.

To change the strap: (1) position the watch with the lug facing upward; (2) use a spring bar tool to remove the fixing bar from the lugs, applying pressure from bottom to top; (3) remove the old strap; (4) insert the new strap by aligning the holes with the lugs; (5) reinsert the spring bar into its seat. On luxury watches such as the Royal Collection, we recommend entrusting the operation to a specialised service centre to avoid risk of case damage.

All straps with a 20mm lug width are compatible with the Royal Collection 1SJAW.B02A.C113A. This includes alligator, calf leather, cordovan, NATO, vulcanised rubber, suede leather and specialised textiles. Compatibility is guaranteed provided the attachment is standard (traditional spring bar), without proprietary fastening systems.

An artisanal alligator or calf leather strap, when used regularly, has an average lifespan of 4-5 years before requiring replacement. Longevity depends on: frequency of use, exposure to UV rays, ambient humidity, and periodic maintenance. Vegetable tanning tends to develop visible patina after 12-18 months, without compromising structural integrity. Conditioning the leather every 3 months with neutral balms significantly extends durability.