Technical Archive

Rado
Oval R15938103— lug 18mm

Rado Oval R15938103: 18mm strap. Alligator, box calf, shell cordovan and rubber, cut and stitched in Milano. Choose your leather.

D-Star Ceramos Automatic

Artisanal Note

"This model requires a precise 18mm lug width to preserve the original sartorial balance."

Technical Specifications

Rado R15938103

The Heritage

The Rado Oval R15938103 is a modernist reinterpretation of the Oval collection from the 1970s, featuring an elliptical case made of Cermet—a hybrid material combining high-tech ceramic with stainless steel for scratch resistance and reduced weight. The 42 mm case diameter is proportioned with an 18 mm lug width, creating a harmonious balance. The integrated, architecturally designed lug attachment requires precise aftermarket strap measurement between the pins for correct fit without forcing.

FAQ

What is the lug width of the Rado Oval R15938103?

The lug width of the Rado Oval R15938103 is 18 millimetres. This measurement is taken internally between the two spring bar seats. This is a precise construction specification resulting from the elliptical case proportions: any aftermarket strap must conform exactly to this measurement to ensure correct fitting and stress-free wear.

Which strap would you recommend for the Rado Oval R15938103?

For the R15938103, we recommend in order of aesthetic coherence: vegetable tanned leather strap (cognac or mud brown) to emphasise the minimalist character of the case; alligator for those seeking formal elegance; heavyweight cotton NATO for sporting versatility. Avoid narrative or ornamental straps: the Rado Oval functions through subtraction of style.

How do you change the strap on the Rado Oval R15938103?

The lug assembly on the R15938103 is integrated with the case and not removable. Strap replacement is performed by carefully extracting the lateral spring bars using a spring bar tool. Insert the new strap into the seats and reinsert the bars, ensuring they click fully into position. This operation is recommended for an experienced horologist or at the Casati Milano atelier.

Is an aftermarket strap compatible with the Rado Oval R15938103?

Yes, any strap in 18mm width is compatible with the R15938103. The technical specifications are standardised. Milano Straps offers a curated selection of artisanal straps in leather, NATO and rubber, all tested for this lug width, with online personalisation options available.

What is the lifespan of a leather strap on the Rado Oval R15938103?

Longevity depends on the tanning method and frequency of wear. A quality vegetable-tanned leather strap, worn regularly, maintains structural integrity for 3-5 years; with optimal care (periodic cleaning, rotational rest) can extend to 7-8 years whilst developing characteristic patina. Structured rubber typically lasts 4-6 years. Milano Straps provides maintenance and replacement services at the atelier.