Rolex · Day-Date 36

Strap for Day-Date 36 Yellow Gold Diamonds / Oyster / Champagne Computer

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
Reference118348-0152
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 118348-0152

Selected for the 20 mm lug width · workshop selection

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The Day-Date 36 118348-0152, seen from the bench

The Rolex Day-Date 36 reference 118348-0152 combines 18-karat yellow gold with a cyclamen diamond bezel and champagne dial. Launched in 1956 as the first wristwatch displaying the full day of the week, this 36 mm case houses the automatic caliber 3155 with 31 jewels, Glucydur balance, and Breguet hairspring. The movement achieves COSC chronometer certification within −4/+6 seconds daily and features a rapid correction calendar mechanism for day and date. The oyster case is water-resistant to 100 meters with a screwed caseback. Lug width is 20 mm, the standard dimension for the Day-Date 36 model, requiring precision compatibility with spring bars and straps.

Frequently asked questions

What is the lug width of the Rolex Day-Date 36 118348-0152?

The Rolex Day-Date 36 reference 118348-0152 features a lug width of 20 mm, measured at the base of the case at the strap attachment point. This is the standard measurement for the entire Day-Date 36 family and requires straps with precisely machined attachment horns to prevent lateral play against the solid yellow gold lugs.

What is the best strap for the Rolex Day-Date 36 118348-0152?

For the Day-Date 36 118348-0152 in yellow gold, an alligator strap in vegetable-tanned leather is the most coherent choice with the watch's formal identity. The large-scale grain texture complements the polished gold surface without competing with it. Shell cordovan is the preferred alternative for those who appreciate a patina that develops with wear, whilst vulcanised rubber suits more active use.

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

Replacing the strap on a Day-Date 36 requires removing the springbars from the lugs using a dedicated spring bar tool with a forked tip. As the lugs are crafted in solid gold, they are susceptible to scratching: it is advisable to protect the case with surgical tape during the operation and to use quality springbars, preferably in stainless steel with a 1.8 mm diameter, compatible with the 20 mm Oyster lugs.

Are there aftermarket straps compatible with the Rolex Day-Date 36 118348-0152?

Yes, the aftermarket offers straps compatible with the 20 mm lug width of the Day-Date 36 118348-0152. Milanostraps.it provides a selection of handcrafted straps in leather, rubber and fabric made to measure for this format. It is important to verify that the attachment horn profile suits the integrated lugs of the Day-Date to ensure correct fit and absence of lateral movement.

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

The lifespan of a leather strap depends on material quality and frequency of use. A high-quality vegetable-tanned alligator strap, with regular use and proper care — kept away from water, excessive perspiration and heat sources — will maintain its aesthetic and structural characteristics for three to five years. Casati Milano offers an 18-month guarantee against manufacturing defects on all handcrafted straps.

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