Rolex · Day-Date 36

Strap for Day-Date 36 Everose Gold - Fluted / Silver - Baguette / President - Diamond

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
Reference128235-0088
FamilyDay-Date 36
MovementRolex caliber 3255 Hours, Minutes, Seconds | Date, Day | Chronometer
CaseRose 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 128235-0088

Selected for the 20 mm lug width · workshop selection

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The Day-Date 36 128235-0088, seen from the bench

The Day-Date 36 represents the contemporary version of the classic Rolex watch with day and date indication. It is equipped with the automatic caliber 3255 chronometer certified, offering hour, minute, second, date and day of the week functions. The case has a diameter of 36mm with 20mm lugs.

Frequently asked questions

What is the correct lug width for the Rolex Day-Date 36 128235-0088?

The lug width of the Rolex Day-Date 36 128235-0088 is exactly 20 millimetres. This is the standard measurement of the space between the case lugs where the strap connects. To verify, position a digital calliper perpendicularly against the case lug shoulder. A 20mm strap is the only compatible size for this reference.

Which strap material is best suited for a rose gold Day-Date 36?

Alligator is the most natural choice: its regular hexagonal grain texture, developing patina over time, and tactile nobility make it ideal for a rose gold case. Cognac alligator amplifies the formal character; deep blue alligator remains sophisticated whilst adding interest. Vegetable-tanned calf leather is the alternative for those preferring softness and finer grain, ideally in bordeaux or hazelnut tones.

How do you correctly change the strap on a Rolex Day-Date 36?

Position the watch on a soft surface with the caseback facing upwards. Locate the lug bar pins on the case. Using a spring bar tool, gently turn the screw counterclockwise to slightly release tension. Remove the old strap completely by extracting both pins. Align the new strap's lug holes with the case lugs, reinsert the pins, and turn clockwise until you feel a slight resistance. Never apply excessive force.

Does a high-quality aftermarket strap provide equivalent reliability to an original Rolex strap?

A hand-crafted strap manufactured from noble leathers—genuine alligator, full-grain calf—by specialised ateliers offers structural quality and durability comparable to original Rolex straps, often with superior personalisation options. The difference lies in raw material selection and construction precision. Straps from established ateliers like Casati Milano, with certified deployante mechanisms, maintain equivalent standards of excellence.

How long does an authentic leather strap last on a wristwatch?

A noble leather strap—alligator or full-grain calf—subjected to normal daily wear lasts between three and seven years, depending on frequency of use, ambient humidity, and care. Vegetable-tanned leather ages more slowly than chrome-tanned leather. With minimal maintenance (occasional cleaning, drying after water exposure), longevity increases considerably. A certified artisanal strap typically includes a guarantee against manufacturing defects for 18 months.

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