Rolex · Day-Date 36

Strap for Day-Date 36 Yellow Gold Diamonds / President / Black Diamonds

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
Reference118348-0024
FamilyDay-Date 36
MovementRolex caliber 3155 Hours, Minutes, Seconds | Date, Day | Chronometer
CaseYellow Gold

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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 118348-0024

Selected for the 20 mm lug width · workshop selection

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The Day-Date 36 118348-0024, seen from the bench

The Rolex Day-Date 36 118348-0024 (Yellow Gold Diamonds, President, Black Diamonds) is the contemporary evolution of an icon introduced in 1956—the first automatic chronometer with dual windows for day and date. The yellow gold case measures 36 mm in diameter and houses the caliber Rolex 3155 automatic movement with Parachrom escapement. The 20 mm lug width accommodates replacement straps while maintaining the watch's dimensional balance. This model embodies the formal language of presidential watchmaking, where proportionality and visual equilibrium define the design philosophy.

Frequently asked questions

What is the lug width of the Rolex Day-Date 36 118348-0024?

The Rolex Day-Date 36 118348-0024 features a lug width of 20 millimetres. This measurement indicates the internal distance between the case attachment points. Always verify by measuring from one lug shoulder to the other: precise millimetre accuracy ensures compatibility with aftermarket straps.

What is the best strap for a yellow gold Day-Date 36 118348-0024?

For a yellow gold Day-Date 36, we recommend alligator in cognac or light brown tones, which creates a natural chromatic resonance with the gold. Alternatively, vegetable-tanned calfskin in brown or shell cordovan in burgundy offer tactile density and a patina that evolves over time. Avoid overly cold contrasts such as pure black.

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

Strap replacement is performed by removing the spring bars from the case lugs. Use a dedicated spring bar tool to gently compress the spring mechanism and extract the bar. Insert the new strap by aligning the lug width to the case attachments, then reposition the spring bars ensuring the strap is securely fixed without play.

Is an aftermarket 20mm strap compatible with the 118348-0024?

Yes, any strap with a 20mm lug width is structurally compatible with the Day-Date 36 118348-0024, provided the construction quality and materials are commensurate with the watch's value. Artisanal alligator, calfskin, cordovan or FKM rubber straps guarantee superior structural and aesthetic compatibility versus industrial alternatives.

How long does a leather strap last on the Day-Date 36?

A premium leather strap—alligator or shell cordovan—typically lasts 5–8 years under normal wearing conditions, accounting for exposure to moisture, light and mechanical stress. Vegetable-tanned leather requires regular maintenance with specialist creams. Casati Milano's warranty covers manufacturing defects for 18 months; thereafter, the natural ageing of the leather reflects the authenticity of the material.

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