Rolex · Day-Date 36

Strap for Day-Date 36 Yellow Gold Diamonds / President / White Roman

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
Reference118348-0093
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

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Straps for the Day-Date 36 118348-0093

Selected for the 20 mm lug width · workshop selection

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The Day-Date 36 118348-0093, seen from the bench

The Rolex Day-Date 36 118348-0093 is a 36 mm yellow gold case watch featuring the Rolex Caliber 3155 Chronometer automatic movement with annual calendar complication. The watch maintains classic proportions with a lug-to-lug distance of 20 mm, Twinlock crown water-resistant to 100 metres, and a Cyclops magnifying lens for date and day display. The annual calendar requires adjustment only at the end of February, balancing functionality with operational simplicity.

Frequently asked questions

What is the exact lug width of the Rolex Day-Date 36 118348-0093?

The lug width of the Rolex Day-Date 36 118348-0093 is precisely 20 mm. This measurement must be taken directly between the two lugs of the yellow gold case, without including the case height. This construction specification ensures compatibility with all artisanal straps certified for the 20 mm dimension.

What is the best strap material for the Day-Date 36 in yellow gold?

For the Day-Date 36 118348-0093 in yellow gold, alligator remains the most appropriate choice: its natural grain and patina over time create a coherent visual dialogue with the precious case. Vegetable-tanned calf offers a finer texture, whilst shell cordovan delivers superior lustre. The choice ultimately depends on daily usage and personal aesthetic preferences.

How do you change the strap on a Rolex Day-Date 36 without risking damage?

The Rolex Day-Date 36 118348-0093 features an original deployante clasp that simplifies strap replacement. Use a dedicated spring bar tool to release the terminal lugs and remove the old strap. When inserting the new strap, align the holes and ensure the spring bars remain parallel. Avoid forcing the strap: slight resistance is normal. If uncertain, consult a trusted watchmaker.

Can an aftermarket strap be mounted on an original Rolex Day-Date 36?

Yes, absolutely. The Rolex Day-Date 36 118348-0093 is fully compatible with aftermarket straps of 20 mm lug width. The key is selecting superior materials and craftsmanship—alligator, calf or shell cordovan—to preserve the aesthetics and value of the original timepiece. Casati Milano offers artisanal straps engineered to Rolex compatibility specifications.

How long does a leather strap last on a Day-Date 36 under daily use?

The durability of a leather strap depends on material quality, maintenance and usage intensity. A superior-grade alligator, vegetable-tanned, typically resists 3-4 years of daily wear before showing signs of deterioration at the stitching. Shell cordovan, thanks to its cartilaginous density, can exceed 5 years. Regular maintenance—weekly cleaning with a damp cloth and conditioning every 3 months—significantly extends strap lifespan.

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