Strap for Oyster Perpetual 36 Steel

The lug width of the Rolex Oyster Perpetual 36 116000-0009 is 20 millimetres. This measurement represents the distance between the inner lugs of the Oyster case on this generation. It is critical to observe this specification precisely (maximum tolerance ± 0.5 mm) to ensure proper alignment and prevent lateral play that would accelerate wear.

The ideal strap depends on your intended use. For formal and business settings, we recommend vegetable-tanned alligator in dark brown or black, which complements the minimalist white dial. For daily and casual wear, vintage calf leather or NATO canvas maintains maximum versatility. If you anticipate frequent aquatic activities, FKM rubber represents the most technically appropriate choice.

Changing the strap requires a dedicated Spring Bar Tool. Position the flat tool in the lateral gaps where the pin exits the case, apply gentle downward pressure to compress the internal spring, then extract the pin. Repeat on the opposite side. To install the new strap, align the lug holes with the pin and press until you feel the retention click. This operation demands precision; if unsure, consult a professional watchmaker.

Absolutely. Aftermarket 20mm straps offer full structural compatibility and often surpass original Oyster straps in leather quality and finish. The essential requirement is verifying that the lug width measures exactly 20mm and that materials are of superior grade. At Casati Milano, you can select noble leathers with artisanal craftsmanship, supervising every creation phase.

The longevity of a leather strap depends on daily wear and climatic conditions. With proper maintenance—regular cleaning, drying after rain, protection from excessive humidity—a quality alligator or calf strap typically lasts 3–5 years. Vegetable-tanned leather ages gracefully with natural patina, whilst rubber and nylon NATO straps endure longer in demanding contexts, easily exceeding 7–10 years.