Rolex
Datejust 36 116243-0013— lug 20mm

The lug width of the Rolex Datejust 36 116243-0013 is 20 mm. This measurement refers to the internal distance between the two lugs where the strap is inserted. Accurate verification of this dimension is essential before ordering an aftermarket strap. Use a calliper or ruler positioned between the inner edges of the metal lugs to confirm the measurement.

The optimal choice depends on intended use and personal preference. For classic formal wear, black or brown alligator is ideal, particularly with two-tone gold and steel cases. Calf leather offers greater versatility in colours such as black, dark brown, and cognac. Shell Cordovan represents the choice for those seeking durability and exceptional patina development. For a sportier interpretation, a fabric or leather NATO strap remains elegant without compromising the instrument's formality.

Strap replacement requires specific tools: a spring bar remover to extract the elastic pins from the lugs. Position the watch on a soft surface, locate the small hole inside each lug, gently insert the tool to compress the internal spring, and slide the old strap outward. Repeat on the opposite side. Insert the new strap into the first lug, then the second, ensuring the pins are securely seated. If inexperienced, consult an official Rolex service centre to prevent damage to the lugs.

Yes, the Datejust 36 is fully compatible with premium aftermarket straps, provided they conform to the 20 mm lug width specification. Artisan Italian leather straps produced by specialist craftsmen frequently offer superior quality to original bracelets in terms of comfort, patina development, and longevity. Ensure the strap respects precise dimensional tolerances and that any metal buckle matches the case material: yellow gold for full gold versions, steel for two-tone configurations.

Strap longevity depends on material composition, frequency of use, and maintenance practices. A premium alligator or Shell Cordovan strap, properly maintained, typically lasts 3–5 years of daily wear before exhibiting structural fatigue. Calf leather tends to have a shorter lifespan, approximately 2–3 years under intensive use. Correct maintenance—protection from excessive moisture, occasional cleaning with a soft cloth, and avoidance of prolonged water exposure—substantially extends durability. Many Rolex owners maintain multiple straps in rotation to distribute wear patterns over time.