Technical Archive

Rolex
Daytona 116515LN-0003— lug 20mm

Rolex Daytona 116515LN-0003: 20mm strap. Alligator, box calf, shell cordovan and rubber, cut and stitched in Milano. Choose your leather.

Cosmograph Daytona Everose / Cerachrom / Ivory

Artisanal Note

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

Technical Specifications

Rolex 116515LN-0003
Lug Width
20 mm

The essential strap measurement.

Browse 20mm straps →
Reference

116515LN-0003

Movement

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

The Heritage

The Daytona was introduced in 1963 as a sporty chronograph dedicated to motorsports. Reference 116515LN-0003 features the automatic caliber 4130 with chronograph function, column wheel and chronometer certification. The watch has 20mm lugs and offers hour, minute, small second and chronograph indication.

FAQ

What is the exact lug width of the Rolex Daytona 116515LN-0003?

The lug width of the Rolex Daytona 116515LN-0003 is 20mm. This measurement is taken from the inner shoulder of the first lug to the inner shoulder of the second lug. A 20mm strap fits perfectly onto the original spring bars without risk of slipping or damaging the lugs. Do not use 19mm or 21mm straps, as they would cause structural incompatibility.

What is the best strap material for the rose gold Daytona 116515LN-0003?

Alligator leather in cognac brown is the optimal choice for rose gold: the vertical grain of the leather dialogues with the visual structure of the dial, and the natural patina that develops over time synchronises the strap with the ageing of the gold. Bordeaux shell cordovan represents the refined alternative, developing a mirror-like gloss after six months of regular wear. For summer contexts, vegetable-tanned calf in hazelnut tone maintains elegance without rigidity.

How do you change the strap on the Rolex Daytona 116515LN-0003?

Changing the strap requires a spring bar tool (a flat-tipped implement). Position the tool under the end of the spring bar to lift the pin, then remove the old strap. Insert the new strap by aligning the holes with the lugs, then lower the spring bar until it clicks into position. Verify that the strap is securely fastened before wearing the watch. It is advisable to have a qualified watchmaker perform this operation if you lack experience.

Is an aftermarket 20mm strap compatible with the 116515LN-0003?

Yes, any strap equipped with 20mm lugs is compatible with the Daytona 116515LN-0003, provided the spring bars are of the same length and rigidity as the original Rolex ones. Bespoke artisanal straps guarantee total compatibility. Always verify that the strap has been expressly designed for the 20mm lug width, not for other sizes.

How long does a natural leather strap last on the Rolex Daytona 116515LN-0003?

A high-quality natural leather strap (alligator, shell cordovan, calf) typically lasts 3-5 years with daily wear and proper maintenance. Longevity depends on sun exposure, humidity, and chemical substances (soaps, fragrances, perspiration). To extend the lifespan, apply leather conditioner every 6 months and store the watch in a dry location when not worn. Wear is considered part of the charm of natural leather, but a tear near the buckle signals imminent replacement need.

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.

Request an appointment →

By appointment only · Milan

The atelier's website: casatimilano.com