Rolex · Day-Date 36

Strap for Day-Date 36 Yellow Gold - Fluted / Bright Green - 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
Reference128238-0131
FamilyDay-Date 36
MovementRolex caliber 3255 Hours, Minutes, Seconds | Date, Day | Chronometer
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 128238-0131

Selected for the 20 mm lug width · workshop selection

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The Day-Date 36 128238-0131, seen from the bench

The Day-Date 36 is equipped with the automatic Caliber 3255 with chronometer certification and dual date and day of the week indication. The case has a diameter of 36mm with 20mm lugs. The movement offers hour, minute, and second indication along with calendar complications.

Frequently asked questions

What is the lug width of the Rolex Day-Date 36 128238-0131?

The Rolex Day-Date 36 in the 128238-0131 configuration, crafted in yellow gold, features integrated lugs with a width of 20 mm. This specific dimension ensures exclusive compatibility with straps designed for this exact specification, guaranteeing precise fit and structural integrity.

Which strap should I pair with the Rolex Day-Date 36 in yellow gold?

For the Day-Date 36 in yellow gold, alligator leather in cognac or tobacco tones creates classical tonal harmony, whilst black alligator introduces minimalist elegance. For daily wear without compromise, a butadiene rubber or beige NATO fabric strap offers protection and practicality whilst preserving aesthetic integrity. Italian vegetable-tanned calf leather represents the ideal balance between formality and versatility.

How should I correctly measure a watch lug width?

Place a digital calliper or ruler between the two internal attachment points of the watch case's integrated lugs. The measurement must occur between the inner shoulders, not the outer extremities. For the Day-Date 36, the result must be precisely 20 mm. Inaccurate measurement may lead to purchasing incompatible straps.

Which aftermarket straps are compatible with the Rolex Day-Date 36 128238-0131?

All straps designed for the 20 mm lug width specification are compatible with the Day-Date 36 128238-0131, regardless of brand or material type. At milanostraps.it, a complete collection of 20 mm straps in leather, rubber and fabric is available, curated and verified for compatibility with this specific Rolex configuration.

How long does a leather strap last before replacement?

A quality leather strap, with ordinary care and storage in normal humidity conditions, maintains structural integrity for 5-7 years of intensive daily use. Vegetable tanning prolongs durability compared to synthetic chrome tanning. Factors such as direct sun exposure, daily perspiration and prolonged water immersion significantly reduce longevity. With Casati Milano, every artisanal strap carries an 18-month warranty against manufacturing defects.

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