Rolex · Day-Date 36

Strap for Day-Date 36 Yellow Gold Diamonds / Oyster / 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
Reference118348-0096
FamilyDay-Date 36
MovementRolex caliber 3155 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

All Rolex spring barsOpen →

Straps for the Day-Date 36 118348-0096

Selected for the 20 mm lug width · workshop selection

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The Day-Date 36 118348-0096, seen from the bench

The Day-Date was introduced in 1955 as the first automatic wristwatch to indicate the day and date in full. It features the automatic 3155 caliber with COSC chronometer certification and day indication in 26 languages. 36mm case with 20mm lugs, available exclusively in precious metals.

Frequently asked questions

What is the lug width of the Rolex Day-Date 36 118348-0096?

The lug width of the Rolex Day-Date 36 118348-0096 is 20 millimetres. This dimension is specific to 36mm models and is measured between the inner edges of the two horizontal spring bars that connect the strap to the case. It is essential to verify this measurement before purchasing an aftermarket strap to ensure compatibility and proper load distribution across the yellow gold case.

What is the best strap for the Rolex Day-Date 36 118348-0096?

The optimal material depends on the intended use. Alligator represents the traditional choice for formal contexts, offering natural texture and ennobling patina development. Italian calf leather in vegetable tanning guarantees greater structural rigidity and daily durability. For greater versatility, shell cordovan permits transitions between formal and casual contexts. All materials must feature a 20mm lug width and verified compatibility with the case attachments.

How do I change the strap on my Day-Date 118348-0096?

Strap replacement requires a specific tool to extract the horizontal spring bars from the case lugs. Position the watch on a soft cushion with the strap facing upward, locate the small holes on both sides of the case, insert the tool to compress the internal spring and slide the bar outward. Repeat the operation on the opposite side. Insert the new 20mm strap ensuring the bars lock completely into the lugs.

Which aftermarket straps are compatible with the 118348-0096?

Any strap with a 20mm lug width and standard spring bar attachments can be paired with the 118348-0096. We recommend straps in alligator, Italian calf, shell cordovan and natural rubber of superior quality. Avoid synthetic or low-quality faux leather straps, which fail to do justice to the yellow gold case. Online you will find a dedicated selection of 20mm straps specifically verified for this model.

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

The longevity of a leather strap depends on material and usage patterns. Vegetable-tanned alligator resists 3–5 years with daily wear, developing an attractive patina. Italian calf offers similar resistance, but with regular maintenance (conditioning with hydrophobic creams) can last 5–7 years. Shell cordovan, due to its natural density, reaches 8–10 years. Critical factors are exposure to perspiration, contact with undried water and tanning quality. A professional overhaul every 2–3 years significantly extends the strap's serviceable 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