Arnold & Son · Royal Collection

Strap for HM Goats

Takes 20 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width20 mm
Case diameter40 mm
ReferenceLCAP.M07A.C110A
FamilyRoyal Collection
MovementArnold & Son caliber A&S1001 hours, minutes, small seconds
CaseRose Gold

Spring bar

Swiss Standard universal spring bars

The right category for this model · 316L steel, all lug widths 13–26 mm

Straps for the Royal Collection LCAP.M07A.C110A

Selected for the 20 mm lug width · workshop selection

All 20 mm straps →

The Royal Collection LCAP.M07A.C110A, seen from the bench

The Arnold & Son LCAP.M07A.C110A is a 40mm rose gold watch from the Royal Collection, combining Georgian aesthetic principles with contemporary Swiss technical sophistication. It houses the proprietary A&S1001 caliber, a movement designed for clarity and reliability with hours, minutes, and small seconds. The 20mm lug width is a critical dimensional specification that defines the watch's visual architecture and determines strap compatibility; this measurement must be verified precisely to ensure proper strap installation.

Frequently asked questions

What is the lug width of the Arnold & Son Royal Collection LCAP.M07A.C110A?

The lug width of the LCAP.M07A.C110A is precisely 20mm. This measurement is critical for strap compatibility and is determined by the distance between the two lug holes at the case extremities. It does not tolerate significant tolerance variations.

What is the best strap for the Arnold & Son Royal Collection LCAP.M07A.C110A?

For a timepiece of this aesthetic calibre, alligator leather with a fine grain is the natural choice: its regular appearance dialogues perfectly with the precise geometry of the rose gold case. Alternatively, vegetable-tanned calf offers authenticity and dramatic patina development over time. For versatility, a light grey NATO allows the case to take centre stage.

How do you change the strap on an Arnold & Son Royal Collection watch?

Strap replacement requires a spring bar tool to extract the elastic pins from the lugs. Insert the tool's fork between lug and pin, apply gentle pressure to compress the spring, and simultaneously extract the pin. Operate delicately to avoid scratching the rose gold case. Insertion of the new strap follows the inverse procedure.

Which aftermarket strap is compatible with the LCAP.M07A.C110A?

Any strap with a 20mm lug width is compatible. It is crucial to verify that the strap thickness at the passage does not exceed 3.5-4mm to avoid fatigue of the elastic pins or micro-scratches to the case. Milano Straps offerings for the 20mm size are tested on references of this class.

How long does a leather strap last on this watch?

A quality leather strap, worn daily on a single lug, has an average lifespan of 4-6 years before replacement is advisable. This duration depends on climate, humidity, frequency of wear, and leather care. Vegetable-tanned calf develops natural creases that extend its aesthetic appeal beyond the functional terminus; alligator typically maintains itself longer before showing signs of fatigue.

The next step

The right strap isn't chosen. It is built, together.

From the atelier appointment to delivery, every step is made for those who know that things done well take time. Rare leathers, one piece at a time, eighteen months of warranty.

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Casati Milano · Via XX Settembre 15, Milan · by appointment only