Rolex · Daytona

Strap for Cosmograph Daytona White Gold - Diamond / Reverse Panda MOP - Diamond / Oyster

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
Reference126579RBR-0001 (aka: m126579rbr-0001)
FamilyDaytona
MovementRolex caliber 4131 Hours, Minutes, Small Seconds | Chronograph, Column wheel | Chronometer
CaseWhite 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 126579RBR-0001 (aka: m126579rbr-0001)

Selected for the 20 mm lug width · workshop selection

All 20 mm straps →

The Daytona 126579RBR-0001 (aka: m126579rbr-0001), seen from the bench

The Daytona was introduced in 1963 as a chronograph for racing drivers. The reference 126579RBR-0001 features the automatic caliber 4131 with chronograph function and chronometer certification. 20mm lugs complete the technical configuration of the model.

Frequently asked questions

What is the lug width of the Rolex Daytona 126579RBR-0001?

The lug width is precisely 20 millimetres. This specification is fixed and non-negotiable: the lugs are soldered to the white gold case during manufacturing. Only straps dimensioned to 20mm ±0.10mm guarantee correct fit without lateral play or friction on the lug edges.

Which strap material is recommended for the Daytona 126579RBR-0001?

Nile crocodile alligator is the orthodox choice: the compact grain and naturally smooth belly create a sophisticated contrast with the brilliance of white gold. Shell cordovan offers an undulating texture and structural rigidity ideal for a sports chronograph. Vegetable-tanned calf introduces initial softness but develops patina less predictably over time. Rubber remains technical but compromises the aesthetic aristocracy of a precious case.

How do I change the strap on a Rolex Daytona?

Strap replacement requires specific tools: a flat-tipped spring bar tool and a magnifying lens. Position the watch on a stable base, gently insert the tool tip into the lateral slots of the lower lug to release the spring, extract the lug, then insert the new spring into the strap and reposition it in the case. Repeat for the second side. If uncertain, entrust the procedure to an authorised Rolex service centre.

Can I use a quality aftermarket strap on a Rolex Daytona 126579RBR-0001?

Yes, provided the strap is correctly dimensioned to 20mm and manufactured with durable materials (alligator, cordovan, quality vegetable-tanned calf). A high-quality artisanal strap not only improves comfort and personalisation but preserves watch value through noble materials and rigorous construction. Avoid generic or undersized straps that may damage the lugs.

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

Durability depends on material and usage. Quality artisanal Nile crocodile or shell cordovan typically lasts 4–7 years with normal wear, developing a characteristic patina that enriches aesthetic profile. Vegetable-tanned calf lasts 2–4 years and patinas in warm tones. Regular maintenance (soft cloth cleaning, protection from excessive moisture) extends useful life. Casati Milano straps include an 18-month guarantee 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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Casati Milano · Via XX Settembre 15, Milan · by appointment only