Strap for Perpetual 1908 39 Platinum / Ice Blue

The lug width is 20mm, the standard Rolex specification for dress models with a 39mm case diameter. The lug width is the internal space between the case lugs, measured from inner edge to inner edge. A 20mm strap will fit the Perpetual 1908 52506-0003 perfectly.

American alligator is the primary choice: natural grain conveys understated elegance and the leather offers sufficient suppleness for comfort. Shell cordovan is ideal for those seeking durability and a patina that develops over time. Smooth calf in neutral tones (black, dark brown) is the most formal alternative. Rubber and fabric are inadvisable as they contradict the dress-oriented identity of the model.

Changing the strap on a Rolex Perpetual 1908 requires specialist tools (spring bar remover) to extract the lateral lugs pins. If you lack experience, we recommend consulting a professional watchmaker or the services of Casati Milano, who track the crafting process via WhatsApp and guarantee the work for 18 months.

Yes, provided the width is 20mm. A custom aftermarket strap allows greater personalisation compared to official Rolex options. We recommend high-quality alligator, calf or shell cordovan with minimalist finishes that respect the formal character of the model.

A quality alligator strap lasts 5–8 years with normal wear. Shell cordovan can last over 15 years due to the natural resilience of horse leather. Calf lasts 3–5 years and develops a distinctive patina. Longevity depends on frequency of wear, sunlight exposure and maintenance (regular cleaning, protection from moisture).