Rolex
Perpetual 1908 52506-0003— lug 20mm
Rolex Perpetual 1908 52506-0003: 20mm strap. Alligator, box calf, shell cordovan and rubber, cut and stitched in Milano. Choose your leather.
Artisanal Note
"This model requires a precise 20mm lug width to preserve the original sartorial balance."
Technical Specifications
Rolex 52506-0003The essential strap measurement.
Browse 20mm straps →52506-0003
Rolex caliber 7140 Hours, Minutes, Small Seconds | Chronometer
The Heritage
Compatible Straps
Selected for the 20mm lug width of the Perpetual 1908
FAQ
What is the lug width of the Rolex Perpetual 1908 52506-0003?
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.
Which strap material is recommended for the Perpetual 1908?
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.
How do I change the strap on a Rolex Perpetual 1908?
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.
Can I use an aftermarket strap on a Rolex Perpetual 1908 52506-0003?
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.
How long does a leather strap last on a Rolex Perpetual 1908?
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).
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 →By appointment only · Milan
The atelier's website: casatimilano.com