Rolex · Daytona

Strap for Cosmograph Daytona 100th Anniversary 24H Hours of Lemans

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
Reference126529LN-0001 (aka: M126529LN-0001)
FamilyDaytona
MovementRolex caliber 4132 hours, minutes, small seconds | Chronograph, column wheel | chronometer
Year2023 - 2024
CaseCeramic, White 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 126529LN-0001 (aka: M126529LN-0001)

Selected for the 20 mm lug width · workshop selection

All 20 mm straps →

The Daytona 126529LN-0001 (aka: M126529LN-0001), seen from the bench

The Rolex Daytona 126529LN-0001 Cosmograph Daytona 100th Anniversary 24H Hours of Lemans is a white gold and ceramic chronograph from Rolex's racing line. It features the caliber 4132 automatic movement with 72-hour power reserve and chronometer certification. The 40mm white gold case houses a blue Cerachrom ceramic bezel and black dial with luminous counters. Water-resistant to 100 meters, it accepts a 20mm lug width strap and combines precision engineering with racing heritage.

Frequently asked questions

What is the lug width of the Rolex Daytona 126529LN-0001?

The Rolex Daytona 126529LN-0001 is equipped with 20mm lugs. This Rolex standard for 40mm sports cases ensures balanced proportions between case diameter and bracelet width. To verify strap compatibility, measure the internal distance between the lugs using a digital calliper: the precise value must be 20mm, with no tolerance exceeding ±0.5mm.

Which type of strap is recommended for the white gold Daytona 126529LN-0001?

For the white gold Daytona, vegetable-tanned alligator represents the ideal artisanal choice: compact thickness (1.4–1.6mm), visible grain and patina developing through wear. Paired with white gold, dark brown alligator creates elegant contrast. Alternatively, robust box calf (more durable), rubber (for chlorine and saltwater resistance), or cotton NATO straps for sporting versatility remain valid options based on daily usage.

How do I change the strap on a Rolex Daytona 126529LN-0001?

Strap replacement involves removing the spring bar from the lugs using a dedicated strap removal tool, applying light, consistent pressure on the small lateral button until it releases. Remove the old strap while keeping the spring bar in position, align the new strap with the lugs, and reinsert the spring bar with a fluid motion until the click signals secure locking. Verify the strap is perfectly seated on both sides before wearing the watch.

Can I use an aftermarket compatible strap on my Daytona 126529LN-0001?

Yes, any strap with a 20mm lug width is compatible with the Daytona 126529LN-0001, provided the width is precise (maximum tolerance ±0.2mm). Artisanal Milan straps in alligator, calf and rubber maintain elevated quality standards and offer superior aesthetic customization compared to factory solutions. We recommend verifying that the strap was manufactured to micrometric tolerances to ensure correct mechanical fit and absence of oscillation during wear.

How long does a natural leather strap last on a Daytona chronograph?

Lifespan depends on material, tanning method and frequency of use. An alligator or vegetable-tanned calf strap worn daily on a 40mm chronograph such as the Daytona 126529LN-0001 maintains aesthetic functionality between 18 and 36 months before replacement is necessary. Accelerating factors include prolonged humidity exposure, intense direct UV radiation, and acidic perspiration. Casati Milano's artisanal warranty covers manufacturing defects for 18 months; natural leather wear is considered patina and does not constitute a defect.

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