Technical Archive

Rolex
Day-Date 36 118348-0076— lug 20mm

Rolex Day-Date 36 118348-0076: 20mm strap. Alligator, box calf, shell cordovan and rubber, cut and stitched in Milano. Choose your leather.

Day-Date 36 Yellow Gold Diamonds / President Diamond / Paved Roman

Artisanal Note

"This model requires a precise 20mm lug width to preserve the original sartorial balance."

Technical Specifications

Rolex 118348-0076
Lug Width
20 mm

The essential strap measurement.

Browse 20mm straps →
Reference

118348-0076

Movement

Rolex caliber 3155 Hours, Minutes, Seconds | Date, Day | Chronometer

The Heritage

The Rolex Day-Date 36 model 118348-0076 is a 36 mm yellow gold President featuring the in-house caliber 3155 automatic movement with COSC chronometer certification. Introduced in 1956 as the first automatic watch with dual day-date display, this timepiece combines classical proportions with 42-hour power reserve and 50-meter water resistance. The 20 mm lug width accommodates the President bracelet and is standard for Rolex 36 mm models.

FAQ

What is the lug width of the Rolex Day-Date 36 reference 118348-0076?

The lug width of the Day-Date 36 reference 118348-0076 is precisely 20 millimetres. This is the net distance between the two spring bars that secure the strap to the case lugs. It is an exact specification that must be respected: any aftermarket strap must have exactly this width to fit correctly without gaps or tension anomalies.

Which strap is best suited for the yellow gold Rolex Day-Date 36?

Alligator leather remains the primary choice for authentic formal elegance. Full-grain calf is recommended for those seeking a more pronounced texture and superior durability. Shell cordovan offers a visibly ageing patina over time, creating an emotional bond with the yellow gold. For versatile use, a double-layer NATO strap maintains practicality without aesthetic compromise. Milano Straps' <a href="https://milanostraps.it/collections/cinturini-orologi-per-misura-ansa-20mm">20mm strap collection</a> offers all these options.

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

The procedure requires a spring bar tool. Position the tool beneath the spring bar on the underside of the case, pushing the bar inward until one end disengages from the lug tube. Fully extract the spring bar and remove the old strap. Insert the new strap, aligning the holes with the lug tubes, then reinsert the spring bar. Verify that both ends are securely anchored. If you lack experience, consult a certified watchmaker.

Is an aftermarket strap compatible with the Day-Date 36 118348-0076?

Yes, provided it has a 20-millimetre lug width and is manufactured with thickness between 1.2mm and 1.8mm. Milano Straps offers handcrafted straps specifically dimensioned for this case. Always verify technical specifications, and if you choose the Casati Milano service, you can personally follow every manufacturing phase in the atelier with WhatsApp consultation.

What is the average lifespan of a leather strap on a Rolex Day-Date 36?

A high-quality alligator or full-grain calf strap offers a lifespan of 5–8 years of moderate daily wear. Shell cordovan tends to last longer (8–10 years) due to fibre characteristics, but requires an initial adaptation period. The dominant factor is exposure to water and perspiration: avoid immersing the strap and dry it if wet. Milano Straps guarantees 18 months against manufacturing defects and can execute partial replacements of lugs and rivets.

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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The atelier's website: casatimilano.com