Arnold & Son · Royal Collection

Strap for HM Pandas

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
Reference1LCAP.B03A.C111A
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 1LCAP.B03A.C111A

Selected for the 20 mm lug width · workshop selection

All 20 mm straps →

The Royal Collection 1LCAP.B03A.C111A, seen from the bench

The Royal Collection by Arnold & Son features the in-house caliber A&S1001 with hour, minute and small seconds indication. The movement has a classic configuration with a subsidiary seconds. The collection maintains the brand's traditional proportions with a round case and refined finishings.

Frequently asked questions

What is the lug width of the Arnold & Son Royal Collection 1LCAP.B03A.C111A?

The lug width of the 1LCAP.B03A.C111A model is 20mm. This width was specifically chosen to maintain the correct volumetric proportions of the 40mm case. To verify the lug width of your specimen, measure the distance between the inner lugs using a digital calliper.

What is the best strap for the Arnold & Son Royal Collection 1LCAP.B03A.C111A?

For this rose gold model, we recommend vegetable-tanned alligator leather, which accentuates the case reflections through natural grain texture and patina evolution over time. Alternatively, shell cordovan offers equivalent constructive solidity with superior colour depth. Vegetable-tanned calf leather represents the most contemporary choice for those preferring a smooth surface and greater versatility of use.

How do I change the strap on the Arnold & Son Royal Collection 1LCAP.B03A.C111A?

Strap replacement requires the use of a spring bar tool to remove the pins that secure the strap to the lugs. Position the tool in the spring mechanism slot, apply gentle upward pressure, and extract the pin. Align the new strap's holes with the pin, then reinsert it until it clicks securely. Repeat for both lugs.

Is an aftermarket strap compatible with the Arnold & Son Royal Collection 1LCAP.B03A.C111A?

Yes, any strap with a 20mm lug width is compatible with the 1LCAP.B03A.C111A model, regardless of manufacturer. Milano Straps offers an extensive collection of 20mm straps in different materials (alligator, calf, shell cordovan, NATO, rubber), selected for constructive quality and guaranteed mechanical compatibility.

How long does a leather strap last on the Arnold & Son Royal Collection 1LCAP.B03A.C111A?

The lifespan of a leather strap depends on usage intensity and maintenance. An alligator or shell cordovan strap with vegetable tanning, with moderate daily use and regular cleaning, guarantees longevity of 5-8 years. Vegetable-tanned calf leather typically resists 3-5 years under similar conditions. Periodic strap replacement allows you to maintain the watch in optimal condition without compromising its structural integrity.

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