Rolex · Day-Date 36

Strap for Day-Date 36 Yellow Gold Domed / Oyster / Black Diamonds Rubies

Takes 20 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width20 mm
Case diameter36 mm
Reference118208-0322
FamilyDay-Date 36
MovementRolex caliber 3155 hours, minutes, seconds | date, day | chronometer
CaseYellow Gold

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Straps for the Day-Date 36 118208-0322

Selected for the 20 mm lug width · workshop selection

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The Day-Date 36 118208-0322, seen from the bench

The Rolex Day-Date 36 Yellow Gold model 118208-0322 features a 36 mm yellow gold case with a concentric dial and powered by caliber 3155, a Rolex perpetual movement with integrated thermal compensation. The watch is COSC-certified with precision of ±2/+4 seconds per day and includes an annual function that automatically calculates leap years. The lug width is 20 mm, a precise measurement critical for strap compatibility and visual symmetry on the wrist.

Frequently asked questions

What is the exact lug width of the Rolex Day-Date 36 118208-0322?

The lug width of the Rolex Day-Date 36 118208-0322 is 20 millimetres. This is the distance between the spring bars of the case. A compatible strap must respect this measurement precisely; straps of 18 or 22 millimetres will not fit. You can verify this by measuring internally between the two lugs with a digital calliper.

Which strap is most suitable for the yellow gold Rolex Day-Date 36?

For the 118208-0322 in yellow gold, we recommend primarily alligator, whose regular texture naturally dialogues with the rigid geometry of the case. A high-quality Nile or American crocodile alligator develops a noble patina over time that mirrors the ageing of the gold. An elegant alternative is vegetable-tanned leather, which introduces contemporaneity without betraying the classical aesthetic.

How do I change the strap on my Rolex Day-Date 36?

Change the strap using a spring bar remover: a fork-shaped tool that you insert between the case and the lug to release the pins. Work slowly on a soft surface to avoid scratching the gold. If you are uncertain, consult Casati Milano: the Milan atelier performs the change in conjunction with personalised strap selection.

Can I use an aftermarket compatible strap on a Rolex Day-Date 36?

Yes, a 20-millimetre aftermarket strap is physically compatible with the 118208-0322. Physical compatibility does not coincide with aesthetic compatibility: the strap must respect the proportions of the case and the construction quality must be commensurate with the watch. Avoid low-quality straps: cheap leather on a calibre 3155 in yellow gold is an incongruity.

What is the lifespan of a leather strap for the Day-Date 36?

A high-quality alligator strap on a Day-Date 36 lasts approximately 3 to 5 years if worn daily, with ordinary maintenance (avoid water, humidity and excessive friction). Shell cordovan can reach 7 to 8 years due to its exceptional molecular density. Ordinary calf requires replacement every 2 to 3 years. Lifespan depends on use: an occasional strap lasts twice as long as one worn daily.

The next step

The right strap isn't chosen. It is built, together.

From the atelier appointment to delivery, every step is made for those who know that things done well take time. Rare leathers, one piece at a time, eighteen months of warranty.

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Casati Milano · Via XX Settembre 15, Milan · by appointment only