Rolex · Datejust 31

Strap for Datejust 31 Everose Domed / President / Chocolate Roman

Takes 16 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width16 mm
Case diameter31 mm
Reference178245f-0032
FamilyDatejust 31
MovementRolex caliber 2235 hours, minutes, seconds | date | chronometer
CaseRose Gold

Spring bar

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Straps for the Datejust 31 178245f-0032

Selected for the 16 mm lug width

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The Datejust 31 178245f-0032, seen from the bench

The Datejust 31 represents the female version of the Rolex Datejust collection, characterized by a 31mm case diameter. It mounts the automatic caliber 2235 with official chronometer certification and functions of hours, minutes, seconds and date. The lugs measure 16mm in width.

Frequently asked questions

What is the lug width of the Rolex Datejust 31 178245f-0032?

The lug width of the Rolex Datejust 31 reference 178245f-0032 is 16 millimetres. This specification is critical for purchasing compatible straps: the distance between the two anchor pins on the case must be exactly 16mm. Verify by measuring the pins perpendicularly with a digital calliper.

Which strap is recommended for the Datejust 31 in rose gold?

Alligator leather with vegetable tanning in brown or black tones is the primary aesthetic choice for the Datejust 31 in Everose rose gold. Alligator enhances the metal without competing visually. Refined alternatives include cognac vachetta calf or shell cordovan. Choice depends on use case: formality requires black, everyday elegance suggests warm tones.

How do you change the strap on a Rolex Datejust 31?

Changing the Datejust 31 strap requires a spring bar tool to compress the anchor pins. Position the watch case facing you, insert the tool blade into the pin groove, compress gently and slide the old strap away. Install the new strap by aligning the case holes with the pins and ensure the click locks. If uncertain, consult an authorised service centre.

Is an aftermarket strap compatible with the Datejust 31 178245f-0032?

Yes, any strap with 16mm lug width is compatible with the Datejust 31 178245f-0032, provided the width is precise. Quality aftermarket straps—such as Milanostraps offerings in alligator, calf or shell cordovan—guarantee compatibility and often exceed original Rolex straps in craftsmanship and personalisation.

How long does a leather strap last on a Rolex Datejust 31?

A quality leather strap's lifespan depends on usage frequency and climate. An alligator or calf strap, used daily, lasts 3–5 years before showing wear signs. Constant exposure to sweat and humidity accelerates deterioration. Vegetable tanning ages better than industrial tannins. Milanostraps provides an 18-month warranty 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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