Rolex
Datejust 31 178384-0047— lug 16mm
Rolex Datejust 31 178384-0047: 16mm strap. Alligator, box calf, shell cordovan and rubber, cut and stitched in Milano. Choose your leather.
Artisanal Note
"This model requires a precise 16mm lug width to preserve the original sartorial balance."
Technical Specifications
Rolex 178384-0047The essential strap measurement.
Browse 16mm straps →178384-0047
Rolex caliber 2235 Hours, Minutes, Seconds | Date | Chronometer
The Heritage
Compatible Straps
Selected for the 16mm lug width of the Datejust 31
FAQ
What is the lug width of the Rolex Datejust 31 178384-0047?
The Rolex Datejust 31 ref. 178384-0047 has a lug width of 16mm. This measurement is taken between the two lugs at the strap attachment point using a digital calliper. It is specific to this case diameter and is not interchangeable with the 20mm lugs of the Datejust 36 or the 13mm lugs of the Lady-Datejust 28mm.
What is the best strap for the Rolex Datejust 31 178384-0047?
For the Datejust 31 with mother-of-pearl dial and white gold bezel, a vegetable-tanned alligator strap is the most coherent choice with the formal register of this reference. The belly grain creates a visual dialogue with the fluted bezel. Alternatively, polished box-calf leather or shell cordovan offer a refined sartorial character. A deployant clasp in steel or 18k white gold completes the pairing whilst preserving the strap's geometry.
How do you change the strap on a Rolex Datejust 31?
To replace the strap on a Datejust 31, a dedicated springbar tool or fork-tip tool is required to remove the springbars from the 16mm lugs. Insert the tip into the small notch on the side of the lug, compress the spring mechanism and slide the springbar out. This should be done carefully to avoid scratching the steel or white gold lugs. For original Oyster bracelets with the Easylink system, the procedure differs and requires Rolex-specific tools.
Are there aftermarket straps compatible with the Rolex Datejust 31 178384-0047?
Yes. The Datejust 31 ref. 178384-0047 accepts any aftermarket strap with a 16mm lug width and standard springbars. Milano Straps crafts bespoke straps in this specific size in alligator, box-calf, shell cordovan, NATO and rubber. It is essential to verify that the strap ends feature a curved profile to fit correctly against the Rolex lug geometry and ensure a secure, play-free fit.
How long does a leather strap last on a Rolex Datejust 31?
The lifespan of a leather strap depends on the quality of the raw material, the tanning process and daily use. A top-grade vegetable-tanned alligator strap, properly maintained (avoiding prolonged moisture and applying a suitable leather conditioner), will typically last 2 to 4 years with regular wear. Box-calf straps have a comparable lifespan. Straps produced by Casati Milano carry 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.
Request an appointment →By appointment only · Milan
The atelier's website: casatimilano.com