Hermès · Slim d'Hermès

Strap for Slim d'Hermès GM Stainless Steel / Graphite

Takes 18 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width18 mm
Case diameter40 mm
ReferenceW043203WW00
FamilySlim d'Hermès
MovementHermès caliber H1950 hours, minutes, small seconds
Year2016
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 Slim d'Hermès W043203WW00

Selected for the 18 mm lug width · workshop selection

All 18 mm straps →

The Slim d'Hermès W043203WW00, seen from the bench

The Slim d'Hermès houses the Hermès H1950 caliber with hour, minute and small seconds indication. The movement offers a streamlined construction with basic functions for daily use. The reference W043203WW00 represents one of the variants of the French brand's Slim collection.

Frequently asked questions

What is the lug width of the Hermès Slim d'Hermès W043203WW00?

The lug width of the Hermès Slim d'Hermès W043203WW00 is 18 millimetres. This is a very specific measurement, non-standard in the watchmaking industry. The measurement is taken between the two inner edges of the case lugs. It is essential to verify this measurement with precision before ordering an aftermarket strap to ensure complete compatibility.

What strap material is most suitable for the Slim d'Hermès W043203WW00?

For the Slim d'Hermès W043203WW00, we recommend alligator or vegetable-tanned calf leather. Alligator maintains the aesthetic tradition of the Hermès house, with a fine and regular grain. Vegetable-tanned calf leather develops a natural patina over time, enhancing the warm tone of the stainless steel case. For summer use, moulded rubber is a practical and comfortable choice.

How do I change the strap on my Hermès Slim d'Hermès W043203WW00?

The Slim d'Hermès W043203WW00 features an integrated lug attachment to the case. To change the strap, you will need a specific tool to disassemble the lugs (spring bar tool). We recommend proceeding with caution to avoid scratching the case. Many owners entrust this operation to a professional watchmaker or the Casati Milano atelier, which provides installation service by appointment.

Can an aftermarket strap be compatible with the Slim d'Hermès W043203WW00?

Yes, it is possible to find high-quality aftermarket straps compatible with the W043203WW00, provided they respect the 18-millimetre lug width. Specialised craftsmen such as Milano Straps offer straps in alligator, calf leather and rubber designed for this specific width. An artisanal strap can offer aesthetic customisation and excellent build quality.

How long does a leather strap last on the Slim d'Hermès W043203WW00?

The durability of a leather strap depends on usage, tanning method and build quality. An alligator strap with vegetable tanning has a lifespan of 3-5 years with daily wear. Calf leather typically lasts 2-4 years. The patina that develops over time is part of the natural charm of organic materials. Proper maintenance (avoiding excessive moisture, applying specific balms) significantly extends longevity.

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