Strap for Datejust 31 Rose Gold / Domed / Butterfly / Oyster

The lug width of the Rolex Datejust 31 Ref. 278245-0019 is 16 millimetres. This is the internal spacing between the two attachment lugs of the case, measured perpendicularly with a digital calliper. Only watch straps with a 16mm lug width will ensure correct seating and fitting without lateral play.

For the 31mm Everose gold case, we recommend dark brown alligator (vertical grain) for formal elegance, or vintage calf leather with vegetable tanning for daily versatility with natural patina development. Shell cordovan is the most refined alternative for those seeking ultimate sophistication. All straps must have a 16mm lug width for compatibility.

Strap replacement requires removal of the spring bars (U-shaped pins). With the watch resting on a soft surface, use a dedicated tool (spring bar removal tool) to compress the pin and extract it gently from the lugs. Insert the new strap (16mm lug width) and reinsert the pin until it clicks into position. Verify the strap is centred and free from lateral movement. If you lack experience, consult a certified watchmaker.

Yes, provided the aftermarket strap is manufactured with precise 16mm lug width and attachment thickness compatible with Rolex lugs. We recommend high-quality leather straps (alligator, calf, cordovan) rather than generic options, as the Everose gold case deserves equivalent artisanal craftsmanship. Milano Straps offers 16mm straps specifically tested on this reference.

A quality leather strap in alligator or vegetable-tanned calf typically lasts 5-8 years with regular daily use. Longevity depends on humidity exposure, treatment and preventive maintenance. A shell cordovan strap can last over 10 years. Milano Straps guarantees its straps for 18 months against manufacturing defects, independent of natural leather wear.