Rolex · Day-Date 36

Strap for Day-Date 36 Everose Gold / Fluted / Brown Ombré-Diamond / 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
Reference128235-0038 (aka: M128235-0038)
FamilyDay-Date 36
MovementRolex caliber 3255 hours, minutes, seconds | date, day | chronometer
Year2019
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 128235-0038 (aka: M128235-0038)

Selected for the 20 mm lug width · workshop selection

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The Day-Date 36 128235-0038 (aka: M128235-0038), seen from the bench

The Day-Date 36 represents the evolution of the model introduced by Rolex in 1956, the first wristwatch to display the day and date in full. It is equipped with the automatic Caliber 3255 chronometer-certified, with hour, minute, second, date and day of the week indications. The 36mm case features 20mm lugs for the bracelet.

Frequently asked questions

What is the exact lug width of the Rolex Day-Date 36 128235-0038?

The lug width (ansa width) of the Day-Date 36 128235-0038 is precisely 20mm. This measurement is determined by the distance between the case lugs and must not be confused with other dimensions such as buckle width or keeper width. The 20mm is the correct Rolex standard for this model and ensures perfect fit without structural stress.

Which strap is best suited for the Rolex Day-Date 36 in rose gold?

For the Day-Date 36 in rose gold, natural alligator represents the canonical choice due to its fine grain and the patina that develops over time, creating a direct aesthetic synergy with the rose gold. Shell cordovan offers a fascinating alternative with pronounced texture and richer tones, whilst vegetable-tanned calf leather provides a compromise between initial flexibility and long-term durability.

How do I change the strap on a Day-Date 36 128235-0038 without damaging the watch?

Strap changing requires a quality spring bar tool and a stable work surface. Proceed by gently removing the elastic pin (spring bar) from one lug at a time, taking care not to scratch the rose gold case. It is advisable to consult a professional watchmaker or specialist atelier such as Casati Milano to ensure correct execution without risk of damage.

Is a 20mm aftermarket strap compatible with the Rolex Day-Date 36 128235-0038?

Yes, any strap with a 20mm lug width is mechanically compatible with the 128235-0038. However, aftermarket selection must consider construction quality, finishing and material: an artisanal strap in vegetable-tanned or alligator leather guarantees durability and aesthetics comparable to the watch's value, whilst budget options may compromise overall user experience.

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

The lifespan of a leather strap depends on material quality, frequency of use and maintenance. A quality artisanal alligator or shell cordovan strap maintains structural integrity for 5-7 years of daily wear, whilst patina and ageing impart character. An Italian vegetable-tanned calf leather strap can last 6-8 years. Periodic cleaning and drying after moisture exposure significantly extend useful life.

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