Rolex
Datejust 31 278243-0016— lug 16mm
Rolex Datejust 31 278243-0016: 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 278243-0016The essential strap measurement.
Browse 16mm straps →278243-0016
Rolex caliber 2236 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 ref. 278243-0016?
The Rolex Datejust 31 reference 278243-0016 has a lug width of 16mm. This measurement, taken between the two lugs at the point where they meet the case, is essential when selecting a compatible aftermarket strap. The lugs feature a specific curvature matching the Oyster case profile; curved-end straps are recommended for a precise and flush fit.
What is the best strap for the Rolex Datejust 31 278243-0016?
For the Datejust 31 ref. 278243-0016 in Yellow Rolesor, alligator straps with Mississippiensis grain or vegetable-tanned calfskin are the most appropriate choices given the formal character of the piece. Alligator leather complements the yellow gold components, while calfskin develops a natural patina over time. For casual or summer wear, nylon NATO straps or vulcanised rubber offer practicality without compromising the Oyster case integrity.
How do you change the strap on a Rolex Datejust 31?
To replace the strap on a Datejust 31, a spring bar tool with a fine tip is required. Insert the tip into the slot on the lug, compress the spring bar and slide the strap free. Care must be taken to avoid scratching the lug surfaces. It is advisable to work on a soft surface. If in doubt, consult a watchmaker or the Casati Milano atelier for a professional strap change.
Are there aftermarket straps compatible with the Rolex Datejust 31 278243-0016?
Yes, a wide range of aftermarket straps is available for the ref. 278243-0016. The key requirement is a 16mm lug width and, for the best aesthetic result, curved ends matched to the Oyster case of the Datejust 31. Milano Straps offers a curated selection of handcrafted 16mm straps in various materials — alligator, calfskin, shell cordovan, rubber — with spring bars and buckles proportioned to the 31mm case diameter.
How long does a leather strap last on a Rolex Datejust 31?
The lifespan of a leather strap depends on the material and frequency of use. A quality alligator strap with vegetable tanning can last between 3 and 7 years with regular wear, provided it is kept away from water, perfumes and prolonged perspiration. Calfskin typically has a shorter lifespan of 2 to 4 years but develops a distinctive patina. Shell cordovan is among the most durable due to the density of its fibres. Milano Straps provides an 18-month guarantee against manufacturing defects on all its straps.
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