Louis Erard · Excellence

Strap for Excellence Regulator Stainless Steel / Grey

Takes 21 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width21 mm
Case diameter40 mm
Reference54230AG52.BDC02
FamilyExcellence
MovementLouis Erard caliber 7001 / RE9 Hours, Minutes, Small Seconds | Power Reserve Indicator
CaseStainless Steel

Spring bar

Swiss Standard universal spring bars

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

Straps for the Excellence 54230AG52.BDC02

Selected for the 21 mm lug width · workshop selection

All 21 mm straps →

The Excellence 54230AG52.BDC02, seen from the bench

The Louis Erard Excellence 54230AG52.BDC02 is a 40 mm stainless steel watch from the Excellence collection, powered by the Louis Erard calibre 7001/RE9 mechanical movement featuring hours, minutes, small seconds, and a power reserve indicator. The watch requires a 21 mm lug width strap. The case combines satin and polished finishes, and the movement is visible through the exhibition caseback.

Frequently asked questions

What is the exact lug width of the Louis Erard Excellence 54230AG52.BDC02?

The lug width of the Louis Erard Excellence 54230AG52.BDC02 measures precisely 21 millimetres. This dimension is model-specific and must be measured accurately using calliper calipers positioned on the two spring bar holes protruding from the case to ensure correct compatibility.

Which strap is most suitable for the Louis Erard Excellence 54230AG52.BDC02?

The ideal strap depends on your intended usage. For formal and professional occasions, an alligator strap in dark brown tones delivers effortless elegance. For daily practicality, high-quality calfskin offers softness and versatility. For those seeking natural patina that evolves over time, vegetable tanning represents the most considered choice.

How do I change the strap on a Louis Erard Excellence 54230AG52.BDC02?

Strap replacement is a straightforward operation. Obtain a spring bar removal tool. Insert the tip into the lateral slots of the thin spring beneath the lug, press gently to compress the spring, and slide the lug outward. Repeat on the opposite side. To install a new strap, insert the lugs through the prepared apertures and compress the spring until it clicks into position.

Can I use an aftermarket strap compatible with the Louis Erard Excellence 54230AG52.BDC02?

Absolutely. The Louis Erard Excellence 54230AG52.BDC02 accepts any strap with a 21-millimetre lug width, regardless of manufacturer. Milanostraps offers a dedicated collection of 21mm straps in alligator, calfskin, vegetable-tanned leather, NATO, and rubber—all compatible and ready to ship.

How long does a leather strap last on a Louis Erard Excellence?

Durability depends on material quality and usage patterns. Premium alligator, with proper maintenance (protection from excessive water and humidity, conditioning every 12–18 months), lasts 5–7 years. Calfskin, being softer, requires greater care but typically reaches 4–6 years. Vegetable-tanned leather develops a fascinating patina over time, often exceeding 6–8 years of wear. NATO and rubber straps are significantly more durable, frequently surpassing 10 years with adequate care.

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