Rolex · Datejust 31

Strap for Datejust 31 Rose Gold / Fluted / Grey / President

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
Reference278275-0027
FamilyDatejust 31
MovementRolex caliber 2236 Hours, Minutes, Seconds | Date | Chronometer
CaseRose Gold

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Straps for the Datejust 31 278275-0027

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The Datejust 31 278275-0027, seen from the bench

The Datejust 31 Rose Gold ref. 278275-0027 is a 31mm watch featuring Rolex's proprietary Everose gold case (18-carat alloy with gold, copper, and platinum). It includes a fluted bezel, grey dial with rapid-setting date window magnified 2.5x at 3 o'clock, and the caliber 2236 movement delivering approximately 55 hours of power reserve. The watch is COSC-certified chronometer with Rolex's internal standards ensuring ±2/-2 seconds daily accuracy. Water-resistant to 100 meters with screw-down case back and Twinlock crown. The lug width is 16mm, specific to this 31mm Datejust variant and distinct from the 20mm of the Datejust 41 or 19mm of the Datejust 36 Lady.

Frequently asked questions

What is the lug width of the Rolex Datejust 31 ref. 278275-0027?

The Rolex Datejust 31 ref. 278275-0027 features a 16mm lug width. This measurement is specific to the 31mm case and differs from the 20mm of the Datejust 41. To verify it accurately, use a digital calliper to measure the internal gap between the two lugs with the strap removed.

What is the best strap for the Rolex Datejust 31 278275-0027 in rose gold?

For the Everose gold case of the ref. 278275-0027, the most suitable materials are Porosus alligator leather in burgundy or cognac tones, shell cordovan for a compact surface with noble ageing, and Tuscan vegetable-tanned calf for a more versatile everyday character. A rose gold deployant clasp ensures metallic coherence and even pressure distribution.

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

To replace the strap, use a fine-tipped springbar tool with a 0.8mm point. Insert the tool into the lug hole, compress the springbar inward and slide the strap off the lug horn. Repeat on the other side. On a rose gold case, it is advisable to protect the lugs with ptfe tape or fabric to avoid micro-scratches during the operation.

Are there aftermarket straps compatible with the Rolex Datejust 31 278275-0027?

Yes. Any strap with a 16mm attachment is compatible with the Datejust 31 ref. 278275-0027. Milano Straps offers a curated selection of handcrafted 16mm straps in various materials and finishes, made with selected leathers and hand stitching, available with or without a bespoke deployant clasp.

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

Longevity depends on the material, frequency of wear and exposure to perspiration and moisture. A quality alligator strap, used in rotation and maintained with nourishing cream, can last between 3 and 6 years. Shell cordovan, being denser, tends to last longer. Vegetable-tanned calf requires more care but develops a distinctive patina over time.

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