Strap for Day-Date 36 Yellow Gold Diamonds / President Diamond / Paved Roman

The Rolex Day-Date 36 reference 118348-0013 features 20-millimetre lugs. This measurement represents the distance between the two lateral pins of the case where the strap attaches. Accurate measurement with a digital calliper is essential before ordering a replacement strap, as any error would result in mechanical incompatibility.

Alligator is the classical and most harmonious choice for the Day-Date 36 in yellow gold. Dark brown or cognac alligator leather, finished with vegetable tanning, develops a natural patina over time that creates perfect aesthetic dialogue with the warmth of the gold. Italian calf leather represents the contemporary alternative for those seeking more uniform texture and visible artisanal finishing.

Changing the strap on a Day-Date 36 requires the use of spring bars specific to 20mm lugs. The procedure involves gently pressing the spring bar inward to release the pin from the case, removing the old strap end, aligning the new strap end perfectly and reinserting the pin until it clicks securely. If uncertain, it is advisable to consult an expert to avoid case damage.

Yes, high-quality aftermarket straps may be used provided the lug width corresponds exactly to your 118348-0013's 20 millimetres. Casati Milano straps, handcrafted in atelier, guarantee mechanical compatibility and aesthetic superiority over industrial productions. The 18-month guarantee against manufacturing defects protects your investment.

A high-quality natural leather strap—whether alligator or calf—typically lasts between 3 and 5 years under moderate daily wear. Longevity depends on factors such as frequency of use, exposure to moisture, heat and perspiration. Casati Milano straps, made from selected leathers and vegetable-tanned, tend toward the upper end of this range due to superior material quality. Regular maintenance—gentle cleaning and proper drying—significantly extends useful life.