Technical Archive

Rolex
Daytona 116528-0031— lug 20mm

Rolex Daytona 116528-0031: 20mm strap. Alligator, box calf, shell cordovan and rubber, cut and stitched in Milano. Choose your leather.

Cosmograph Daytona Yellow Gold / Black Diamond

Artisanal Note

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

Technical Specifications

Rolex 116528-0031
Lug Width
20 mm

The essential strap measurement.

Browse 20mm straps →
Reference

116528-0031

Movement

Rolex caliber 4130 Hours, Minutes, Small Seconds | Chronograph, Column wheel | Chronometer

The Heritage

The Rolex Daytona 116528-0031 is a yellow gold chronograph featuring a 40mm case, black polished Cerachrom bezel, and Champagne dial with gold background. The 20mm lug width ensures precise compatibility with the case geometry. Powered by the Rolex caliber 4130, a fully in-house certified chronometer movement with 72-hour power reserve and 28,800 vph oscillation, this model represents professional timing capability in the yellow gold sports chronograph segment.

FAQ

What is the lug width of the Rolex Daytona 116528-0031?

The lug width of the Rolex Daytona 116528-0031 is 20mm. This is the internal distance between the two spring bars that secure the original strap. Always verify compatibility before purchase: a single millimetre difference results in improper fitment and the strap will not seat correctly in the lugs.

Which strap material should I choose for the Rolex Daytona 116528-0031?

For the Daytona 116528-0031 in yellow gold, recommended materials include: alligator leather (pronounced grain, natural patina) in polished black or dark brown; calf with vegetable tanning for sartorial elegance; shell cordovan for unparalleled density and generational ageing. A yellow gold deployante clasp completes the visual presentation and protects the spring bars.

How do I change the strap on the Rolex Daytona 116528-0031?

Strap replacement requires two tools: a spring bar tool (pin extractor). Place the watch on soft fabric to prevent scratches. Insert the spring bar tool into the slot beneath the lug, lift the right spring bar and extract it gently from its seat. Repeat on the left side. Then insert the new strap's spring bars into the same seats until they click into place.

Is an aftermarket 20mm strap compatible with the Rolex Daytona 116528-0031?

Yes, provided it is certified 20mm. Always verify that the lug end (terminal shoulder) is proportioned to the case and that the strap thickness aligns with the watch's geometry. Casati Milano straps guarantee documented compatibility with the Daytona.

How long does a leather strap last on a Rolex Daytona?

A premium leather strap (alligator, vegetable-tanned calf, shell cordovan) typically lasts 3-5 years in moderate daily wear. Patina evolution and natural ageing are desirable characteristics, not defects. Replacement is recommended when leather begins separating from stitching or when tears compromise structural integrity. Casati Milano's guarantee covers 18 months against manufacturing defects.

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