Strap for Rolex Datejust 36 116185

The lug width of the Rolex Datejust 36, including the 116185 reference, is 20 millimetres. This measurement represents the distance between the strap attachment pins on the case and is essential for identifying compatible straps. You can verify it by measuring the internal distance between the two attachment holes on the case itself.

There is no single universal choice—it depends on use and aesthetic preference. Alligator is the most classically established choice with proven longevity, featuring a natural grain that evolves over time. Vegetable-tanned calf offers softness and develops authentic patina over years. Shell cordovan excels in durability and natural lustre. For informal summer contexts, a NATO strap in premium fabric (silk, linen) is functional. FKM rubber ensures water resistance if you intend to wear the watch during recreational activities.

The strap is changed by removing the spring bars (the pins connecting the strap to the case). With the watch face-up and strap facing downward, use a dedicated spring bar removal tool to gently press the pin and slide the strap free from the case. Insert the pins into the new strap, ensuring the locking pallets engage correctly. If you are not experienced, it is advisable to consult a professional.

Yes, absolutely. Any strap with a 20 millimetre lug width is compatible with the Datejust 36 116185. Artisanal quality straps (such as those handcrafted in Milan) offer superior materials and customisation not available from commercial alternatives. Ensure the strap has the correct length for your wrist and that the buckle or deployant clasp is proportionate to the 36mm case diameter.

Longevity depends on material quality, tanning method, usage and maintenance. A good quality alligator or calf strap typically lasts 5–8 years with daily wear, often longer with proper care. Shell cordovan, being more resilient, can exceed 10 years. Vegetable-tanned leather may last 7–10 years. Protecting the strap from excessive moisture, perspiration and direct heat sources significantly extends its lifespan. With Casati Milano, every strap carries an 18-month warranty against manufacturing defects.