Rolex
Datejust 36 116233-0212— lug 20mm

The lug width (ansa) of the Rolex Datejust 36 ref. 116233-0212 is precisely 20 millimetres. This dimension represents the width of the space between the case terminals (lugs) and is the Rolex construction specification. Accurate measurement using a digital caliper is essential to ensure any aftermarket strap is perfectly compatible, avoiding visible gaps between the case and the strap.

For a Datejust 36 with a mother of pearl dial, the most suitable materials are natural alligator leather, vegetable-tanned calf, and shell cordovan. Alligator offers understated elegance without competing with the dial's lustre; vegetable-tanned calf develops natural patina over time, whilst shell cordovan maintains superior rigidity and compactness. Recommended tones: dark chocolate brown, natural black, aged grey, or deep burgundy.

Strap replacement requires a spring bar tool. Position the watch on a stable surface, insert the tool into the small slot beneath the case terminal, gently push downward to loosen the spring bar, then slide the old strap outward. Insert the new strap by aligning the holes over the spring bars, then push the bar upward until it clicks into place. If unfamiliar with the procedure, a professional watchmaker can complete the task in minutes.

Yes, absolutely. Any strap with a 20mm lug width is mechanically compatible. Strap selection should consider: leather quality (alligator, vegetable-tanned calf, shell cordovan), buckle type (if present), buckle finish (yellow gold, steel, two-tone), and colour aesthetics. A Casati Milano strap guarantees sartorial craftsmanship and post-sales technical support, or choose from our compatible stock models.

Strap longevity depends on material, usage frequency, and maintenance. High-quality vegetable-tanned alligator lasts 3–5 years with moderate daily wear; shell cordovan can reach 5–7 years due to superior density. Vegetable-tanned calf, if frequently exposed to sunlight, develops aesthetically in 2–3 years (with desirable natural patina). Maintenance includes: protection from direct moisture, avoiding aggressive cleaning, and conditioning the leather every 6–12 months with specific creams. A Casati Milano strap carries an 18-month warranty against manufacturing defects and can be professionally regenerated.