Rolex · Daytona

Strap for Cosmograph Daytona Yellow Gold - Cerachrom / Black - Champagne / Oysterflex

Takes 20 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width20 mm
Case diameter40 mm
Reference126518LN-0004 (aka: M126518LN-0004)
FamilyDaytona
MovementRolex caliber 4131 Hours, Minutes, Small Seconds | Chronograph, Column wheel | Chronometer
CaseCeramic, Yellow 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

All Rolex spring barsOpen →

Straps for the Daytona 126518LN-0004 (aka: M126518LN-0004)

Selected for the 20 mm lug width · workshop selection

All 20 mm straps →

The Daytona 126518LN-0004 (aka: M126518LN-0004), seen from the bench

The Daytona reference 126518LN-0004 is equipped with the automatic Caliber 4131 with chronograph function and column wheel. The movement offers indication of hours, minutes, small seconds and chronograph with chronometer certification. 20mm lugs complete the technical specifications of the model.

Frequently asked questions

What is the lug width of the Rolex Daytona 126518LN-0004?

The lug width of the Rolex Daytona 126518LN-0004 is 20 millimetres. This dimension is specific to modern Daytona chronographs in yellow gold and ceramic, and is engineered to maintain aesthetic balance between the 40mm case and the wrist. Accurate measurement requires positioning a flexible ruler between the internal holes of each lug, avoiding forceful application that would compromise measurement precision.

Which type of strap pairs best with the Daytona 126518LN-0004 in gold and ceramic?

Alligator crocodile leather represents the noblest choice, with its regular scaled texture that harmonises with the warmth of yellow gold. Alternatively, vegetable-tanned calf offers a sober and contemporary aesthetic, whilst shell cordovan guarantees natural lustre and develops profound patina over time. For a more decisive gold-black aesthetic, a black calf or crocodile strap amplifies the contrast of the Cerachrom bezel.

How do I change the strap on my Rolex Daytona?

Changing the strap on the Daytona 126518LN-0004 requires a spring bar removal tool. Locate the small holes on the lugs, insert the tool to retract the internal elastic pin, and extract the previous strap. Insert the new strap, ensuring the elastic pin clicks correctly into the lug holes. If you are inexperienced, we recommend consulting a certified watchmaker to avoid damage to the lugs.

Is an aftermarket strap compatible with 20mm compatible with my Daytona 126518LN-0004?

Yes, any strap with a 20-millimetre lug width is mechanically compatible. However, construction quality, material selection, and finishing must reflect the luxury standard of the timepiece. Artisanal straps in alligator, calf, or shell cordovan, crafted with meticulous attention to detail, ensure longevity and an aesthetic that respects your Rolex investment.

How long does a leather strap last on a Daytona under daily use?

Leather strap durability depends on tanning quality and frequency of use. High-quality alligator or shell cordovan in vegetable tanning maintains structural and aesthetic integrity for 3–5 years of daily wear with proper maintenance (avoid stagnant water, apply protective creams every 6 months). Vegetable-tanned calf has slightly shorter durability (2–4 years). Regular replacement prevents sudden deterioration and keeps your timepiece always presentable.

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