Rado · Oval

Strap for D-Star Ceramos

Takes 20 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width20 mm
Case diameter38 mm
ReferenceR15945103
FamilyOval
MovementETA caliber 955.112 hours, minutes, seconds | date
CaseCermet

Spring bar

Swiss Standard universal spring bars

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

Straps for the Oval R15945103

Selected for the 20 mm lug width · workshop selection

All 20 mm straps →

The Oval R15945103, seen from the bench

The Rado Oval R15945103 is a Swiss watch with an elliptical case measuring 38.00mm in diameter, crafted from Cermet—a composite ceramic alloy combining ceramic hardness with metal workability for exceptional scratch resistance. It features the ETA 955.112 Swiss quartz movement with hours, minutes, seconds, and date functions. The lug width is 20mm, a dimension essential for selecting replacement straps and derived from the watch's elliptical proportions.

Frequently asked questions

What is the lug width of the Rado Oval R15945103?

The Rado Oval R15945103 features a 20mm lug width. This measurement represents the distance between the horizontal pins that connect the strap to the case lugs. It is essential to verify this measurement before purchasing a compatible strap.

Which strap do you recommend for the Rado Oval R15945103?

The choice depends on intended use and aesthetic preference. For maximum elegance, we recommend alligator or shell cordovan. For daily versatility, vegetable-tanned calf leather. For sportiness or water activities, NATO or technical rubber. All materials must feature a 20mm lug width.

How do I change the strap on my Rado Oval R15945103?

Use a spring bar tool (strap removal tool). Position the watch on a soft surface, insert the sharp tip of the tool into the spring bar slot, lift gently and slide the pin out. Repeat for the second pin. Insert the new strap by reversing the procedure, ensuring the pins are fully seated.

Is a 20mm aftermarket strap compatible with the R15945103?

Yes, any strap with a 20mm lug width is physically compatible with the Rado Oval R15945103. We recommend artisanal quality straps that respect the elegant proportions of the 38mm elliptical case.

How long does a leather strap last on my Rado Oval?

An artisanal quality leather strap, with regular maintenance (cleaning and conditioning every 6-12 months) and normal wear, lasts 3-5 years. Factors such as climate, body moisture and frequency of use influence longevity. Vegetable-tanned leather ages beautifully, whilst synthetic leathers have shorter service cycles.

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.

Request an appointment →

Casati Milano · Via XX Settembre 15, Milan · by appointment only