Rolex · Day-Date 36

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

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
Reference128348RBR-0030 (aka: M128348RBR-0030)
FamilyDay-Date 36
MovementRolex caliber 3255 hours, minutes, seconds | date, day | chronometer
Year2019
CaseYellow Gold

Recommended spring bar

Spring bars Rolex Daytona 116520 — 20mm steel

Technical match for lug width and diameter · lug 20 mm · Ø 1.5 mm · closed lugs

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Straps for the Day-Date 36 128348RBR-0030 (aka: M128348RBR-0030)

Selected for the 20 mm lug width · workshop selection

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The Day-Date 36 128348RBR-0030 (aka: M128348RBR-0030), seen from the bench

The Day-Date 36 is equipped with the automatic caliber 3255 with hour, minute, second, date and day of the week indications. The 36mm case is certified as a chronometer and has 20mm lugs. The movement provides essential functions for daily use with a complete display of time information.

Frequently asked questions

What is the lug width of the Rolex Day-Date 36 128348RBR-0030?

The <a href="/pages/termine-glossario/misura-ansa">lug width</a> of the Rolex Day-Date 36 128348RBR-0030 is 20 millimetres. This width is standard for the Day-Date 36 model in yellow gold, and is compatible with all artisanal straps specifically designed for 20mm lug widths. Always verify the measurement before purchase, as 18mm or 22mm lugs will not fit correctly.

What is the best strap for the Rolex Day-Date 36 128348RBR-0030?

The best strap depends on usage and aesthetic preference. For daily formality, <a href="/pages/termine-glossario/alligatore">alligator</a> or <a href="/pages/termine-glossario/shell-cordovan">shell cordovan</a> with hand-crafted finishing maintains the nobility of the metal. For versatility, Hermès-style calf leather with <a href="/pages/termine-glossario/concia-vegetale">vegetable tanning</a> offers evolving patina and durability. For a more casual approach, Italian silk or canvas NATO straps create a contemporary contrast. Casati Milano's sartorial consultation guides your choice based on personal style.

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

Changing the Rolex strap requires extraction of the lug pins using a specialised tool (pry bar or spring bar tool). Insert the flat tip under the pin, gently push towards the centre to release it from the seat, remove the old strap. Align the new strap with the lugs and insert the pins with steady pressure until they click into place. Avoid forcing to prevent damage to the case. If inexperienced, consult a qualified watchmaker or contact Casati Milano for professional installation.

Are there aftermarket straps compatible with the Rolex Day-Date 36 128348RBR-0030?

Yes, numerous aftermarket straps in leather, rubber and textiles are compatible thanks to the standard 20mm <a href="/pages/termine-glossario/misura-ansa">lug width</a>. Casati Milano straps are bespoke-constructed with lugs and <a href="/pages/termine-glossario/deployante">deployante</a> clasps specifically engineered for this model, ensuring perfect fitment and artisanal luxury. Browse our online collection to discover options in alligator, shell cordovan, calf and rubber, all compatible with personalisation options via our atelier.

How long does an artisanal leather strap last on a Rolex Day-Date 36?

An artisanal strap in fine leather on a daily-worn Rolex Day-Date 36 lasts approximately 3–5 years. Longevity depends on leather quality (shell cordovan exceeds 7 years), frequency of use, sun exposure and humidity. Casati Milano straps include an 18-month warranty against manufacturing defects. Proper maintenance (weekly dusting, biannual conditioning) significantly extends strap life. After wear, the strap can be regenerated by a specialised craftsman.

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