Rolex
Day-Date 36 118206-0043— lug 20mm
Rolex Day-Date 36 118206-0043: 20mm strap. Alligator, box calf, shell cordovan and rubber, cut and stitched in Milano. Choose your leather.
Artisanal Note
"This model requires a precise 20mm lug width to preserve the original sartorial balance."
Technical Specifications
Rolex 118206-0043The essential strap measurement.
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Rolex caliber 3155 Hours, Minutes, Seconds | Date, Day | Chronometer
The Heritage
Compatible Straps
Selected for the 20mm lug width of the Day-Date 36
FAQ
What is the lug width of the Rolex Day-Date 36 reference 118206-0043?
The lug width of the Rolex Day-Date 36 118206-0043 is precisely 20 millimetres. This dimension is the standard for the 36mm model within the Day-Date family and ensures proportional balance between the lateral lugs and the case diameter. Measurement is performed by positioning a calliper against the interior edges of the case lugs: any deviation would result in incorrect strap fit.
Which strap material is most suitable for the Day-Date 36 in platinum?
The Rolex Day-Date 36 in platinum pairs excellently with fine-grain alligator, which reflects the nobility of the metal and develops a unique patina over time. Vegetable-tanned calf leather is the contemporary alternative, with visible ageing that adds personal narrative. Black rubber with calf leather insert represents the practical choice whilst maintaining aesthetic integrity. Shell cordovan is a classical option, but its natural thickness (2.5–3mm) requires precise craftsmanship to avoid altering the case drape.
How is the strap replaced on a Rolex Day-Date 36 without damaging the case?
Strap replacement on the Rolex Day-Date 36 requires technical care. Use a dedicated tool (spring bar remover or fine flathead screwdriver) to push the lateral pin outward from the case lugs. Do not apply excessive force: the pin must slide smoothly. Once removed, position the new strap by aligning the interior hole with the case lug, then push the pin until fully seated. Verify that the strap is perfectly perpendicular to the case before finalising the installation.
Is an aftermarket strap compatible with the Day-Date 36 118206-0043?
Yes, provided that the strap is crafted with a certified 20mm lug width. Many specialised strap manufacturers offer bespoke configurations for this Rolex model. Always verify that the interior lugs are correctly dimensioned and that the material does not create play against the case. High-quality straps ensure durability and do not compromise the platinum case over time.
What is the average lifespan of a leather strap on a Rolex worn daily?
A premium leather strap (alligator, calf, shell cordovan) on a daily-wear Rolex maintains structural integrity for 4–7 years, dependent upon UV exposure, humidity and frequency of use. Alligator is more resilient; calf leather ages visibly but retains durability longer. Regular maintenance (gentle cleaning, annual conditioning) extends lifespan. Casati Milano guarantees 18 months against manufacturing defects and recommends preventative replacement at 6 years of intensive wear.
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