Rolex · Datejust 36

Strap for Datejust 36 Stainless Steel Fluted / Oyster / Black

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

Lug width20 mm
Case diameter36 mm
Reference116234-0091
FamilyDatejust 36
MovementRolex caliber 3135 Hours, Minutes, Seconds | Chronometer
CaseWhite Gold, Stainless Steel

Recommended spring bar

Modern Rolex spring bars 20mm — 1.5mm diameter

Technical match for lug width and diameter · lug 20 mm · Ø 1.5 mm · closed lugs

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Straps for the Datejust 36 116234-0091

Selected for the 20 mm lug width · workshop selection

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The Datejust 36 116234-0091, seen from the bench

The Datejust 36 Stainless Steel Fluted, reference 116234-0091, combines white gold and stainless steel OYSTERSTEEL with a fluted white gold bezel. The 36 mm case houses the Rolex caliber 3135, an automatic movement certified chronometer by COSC with maximum deviation of ±2 seconds per day, featuring a blue Parachrom hairspring and screw-down Twinlock crown. Water-resistant to 100 metres with sapphire crystal. The lug width is 20 mm, engineered for precise compatibility with aftermarket straps measuring 19.8–20.2 mm internally.

Frequently asked questions

What is the lug width of the Rolex Datejust 36 116234-0091?

The lug width of the Rolex Datejust 36 reference 116234-0091 is 20 mm. This measurement is consistent across the entire Datejust 36 family and should be verified with a digital calliper on the internal distance between the two lugs to ensure correct compatibility with aftermarket straps.

What is the best strap for the Rolex Datejust 36 116234-0091?

For the Datejust 36 116234-0091 with its white gold bezel, the most suitable straps are vegetable-tanned alligator with bombée grain for formal occasions, shell cordovan for a refined and long-lasting everyday option, or box-calf leather for a slim profile under a shirt cuff. A deployant clasp in steel or white gold PVD ensures a symmetrical and precise fit.

How do you change the strap on a Rolex Datejust 36?

To remove the original bracelet or strap from the Rolex Datejust 36, use a dedicated springbar tool to release the spring bars from the lugs. Rest the case on a soft cushion to avoid scratches. The replacement strap requires 1.8 mm diameter spring bars, 20 mm in length. Ensure both ends click securely into place before wearing the watch.

Are there aftermarket straps compatible with the Rolex Datejust 36 116234-0091?

Yes. Compatible aftermarket straps must have a lug width of 20 mm and ends profiled to follow the curvature of the Rolex lugs without lateral overhang. Milano Straps crafts artisanal straps calibrated to this tolerance, available in various leathers and standard or bespoke lengths.

How long does a leather strap last on a Rolex Datejust 36?

The lifespan of a leather strap depends on the leather type, care routine and exposure to perspiration and moisture. A quality vegetable-tanned alligator strap, with regular use and periodic conditioning, maintains its structural and aesthetic integrity for 3 to 6 years. Shell cordovan, due to its dense fibre structure, can exceed 7 to 10 years. Use in humid or sporting environments will significantly reduce these intervals.

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