Strap for Day-Date 36 White Gold Diamonds / Oyster / Black MOP

The Rolex Day-Date 36 118389-0057 has a lug width of 20 millimetres. This width is standard across all 36mm Day-Date models and must be measured perpendicular to the case lugs. A 19mm strap would be slightly loose, whilst a 21mm strap would not fit into the lugs.

For a Day-Date 36 in 18-carat white gold, Nile alligator with vegetable tanning is the most elegant choice: natural scales capture light with discrete movement. Alternatively, natural leather colour calf develops an organic patina that contrasts beautifully with white gold, whilst shell cordovan offers structured compactness. For informal contexts, a grey silk NATO or vulcanised rubber maintains presidential tone.

Remove the original strap: position the watch face-down on a cushion, locate the spring bars passing through the lugs, and gently extract them with a spring bar tool from one side. Remove the old strap. To install the new one: insert the spring bar from the opposite side, ensuring the buckle or deployant is correctly positioned beneath the strap. Complete by passing the spring bar through the opposite lug.

Yes, provided the measurement is genuinely 20mm between the lugs. Rolex lugs are standardised, so any quality 20mm strap with correct spring bar seats (straight or curved according to case design) fits perfectly. However, construction quality—leather thickness, interior finishing, stitch robustness—determines longevity and aesthetic impression.

A quality artisanal leather strap (vegetable-tanned alligator, shell cordovan, premium calf) worn daily with rotation lasts 3-5 years before requiring replacement due to natural wear. Durability depends on perspiration, sun exposure, frequency of use and maintenance (periodic cleaning, occasional conditioning). Artisanal models with warranties such as Casati Milano's cover manufacturing defects for 18 months.