Schwarz Etienne · Roma

Strap for Roma Small Seconds Stainless Steel / Silver

Takes 15 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width15 mm
Case diameter42 mm
ReferenceWRO15MS24SS01AA
FamilyRoma
MovementSchwarz Etienne caliber MSE 100.00 hours, minutes, small seconds
Year2018
CaseStainless Steel

Spring bar

Swiss Standard universal spring bars

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

The Roma WRO15MS24SS01AA, seen from the bench

The Schwarz Etienne Roma WRO15MS24SS01AA is a 42mm stainless steel watch featuring the in-house MSE 100.00 automatic movement with small seconds at 9 o'clock. The watch has a 15mm lug width and represents independent Swiss watchmaking with manually finished architecture and sapphire caseback. Satinized horizontal surfaces and polished edges complete the refined design.

Frequently asked questions

What is the lug width of the Schwarz Etienne Roma WRO15MS24SS01AA?

The lug width of the Schwarz Etienne Roma WRO15MS24SS01AA is 15mm. This is a structural specification indicating the distance between the inner extremities of the two lugs. Do not confuse this with the case diameter (42mm). To verify strap compatibility, measure the space between the lugs with a digital calliper: the value must be 15.00mm ± 0.1mm.

Which strap do you recommend for the Schwarz Etienne Roma WRO15MS24SS01AA?

The ideal strap depends on intended use. For formal classical aesthetics: black or dark brown alligator, or vegetable-tanned calf leather. For daily versatile wear: high-density NATO strap in navy or grey. For technical performance in humid environments: FKM rubber with modern design. We recommend personalised consultation at Atelier Casati Milano to assess your individual style.

How do you change the strap on a timepiece with 15mm lugs?

To change the strap on the WRO15MS24SS01AA: 1) Remove the spring bars (barrettes passing through the lugs) using a dedicated tool or small flathead screwdriver, 2) support the case gently to avoid scratches, 3) extract the spring bar from one end, 4) insert the new strap between the lugs, 5) reinsert the spring bar ensuring perfect alignment. Many prefer professional assistance from an experienced watchmaker to prevent case damage.

Is an aftermarket strap compatible with the Schwarz Etienne Roma WRO15MS24SS01AA?

Yes, any strap with 15mm lug width is compatible with the WRO15MS24SS01AA. However, we recommend choosing straps of construction quality equivalent to the timepiece itself: substandard leather or low-grade rubber would compromise the aesthetic and functional value of the watch. Milano Straps offers a curated selection of artisanal 15mm straps specifically evaluated for this category of horological instruments.

How long does a leather strap last on the Schwarz Etienne Roma WRO15MS24SS01AA?

The lifespan of a leather strap depends on the tanning method, leather quality and intensity of use. High-quality alligator or vegetable-tanned calf, with moderate daily wear, lasts 3-4 years before replacement is necessary. If exposed to extreme humidity or heat variations, lifespan may reduce to 18-24 months. The patina that develops is desirable and represents the tactile history of the watch; when leather becomes friable or fibres separate, it is time to replace the strap.

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