Schwarz Etienne · Roma

Strap for Roma Small Seconds Automatic Rose Gold / 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
ReferenceWRO15MA27RB21AA
FamilyRoma
MovementSchwarz Etienne caliber ASE 100.00 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

The Roma WRO15MA27RB21AA, seen from the bench

The Schwarz Etienne Roma WRO15MA27RB21AA is a 42mm rose gold case watch featuring the proprietary ASE 100.00 manual-wind movement with hours, minutes, and small seconds. The 15mm lug width is precisely determined by the case proportions and integrated lug design. Rose gold develops a distinctive patina over time, while the open caseback reveals the internal finishing. The movement and case architecture reflect independent Swiss watchmaking principles with rigorous construction standards.

Frequently asked questions

What is the lug width of the Schwarz Etienne Roma WRO15MA27RB21AA?

The lug width is precisely 15mm. This dimension is specifically engineered for the 42mm case of the Roma and requires straps compatible with this exact specification. Accurate measurement with a digital calliper on the integrated lugs is essential to ensure correct fit.

Which strap is most suitable for the Schwarz Etienne Roma in rose gold?

Natural alligator represents the classic choice, as the patina developed over time dialogues beautifully with aged rose gold. Vegetable-tanned calf offers a contemporary alternative with refined elegance. Shell cordovan delivers superior durability whilst maintaining formal sophistication. We recommend selecting based on frequency of use and wearing context.

How do I change the strap on a 15mm watch like the Roma?

Strap change requires a dedicated spring bar remover tool. Support the watch in a stable position, insert the remover into the lug holes and extract the pin with controlled pressure. Insert the new strap by aligning the lug width perfectly with the lugs before reintroducing the spring bar. Verify the strap is correctly positioned before completing the operation.

Can I use an aftermarket compatible strap on a Schwarz Etienne Roma WRO15MA27RB21AA?

Yes, provided the strap is specifically manufactured for 15mm lug width and constructed with superior materials. Milano Straps offers artisanal straps in premium leather, NATO and technical rubber, all tested for compatibility and durability with Swiss luxury watches.

How long does an alligator leather strap last on a daily-wear watch?

A high-quality artisanal alligator strap typically lasts 3-5 years with daily wear and proper maintenance. Longevity depends on ambient humidity, washing frequency and protection from excessive stress. Periodic gentle cleaning and application of specialist leather wax significantly extend useful life.

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