Rolex
Datejust 31 178344-0057— lug 16mm
Rolex Datejust 31 178344-0057: 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 178344-0057The essential strap measurement.
Browse 16mm straps →178344-0057
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 178344-0057?
The lug width of the Rolex Datejust 31 178344-0057 is 16 millimetres. This dimension is measured as the space between the internal spring bars. Straps designed for 16mm are compatible with this model and fit without lateral play.
Which strap is best suited to the Datejust 31 178344-0057?
For the Datejust 31 in white gold and steel, we recommend black alligator, vegetable-tanned calf in cognac or dark brown, or shell cordovan in mahogany. Black alligator harmonises with white gold, whilst vegetable-tanned calf develops a natural patina over time. Your choice should reflect your usage occasions and preferred colour palette.
How do you change the strap on a Rolex Datejust 31?
Strap replacement requires a spring bar tool to compress the internal spring mechanism at the lug, thereby releasing the old strap. Insert the new strap into the lugs, ensuring the spring bar is properly seated and the strap shows no lateral movement. If you lack experience, consult a professional watchmaker.
Is an aftermarket 16mm strap compatible with the 178344-0057?
Yes, any strap manufactured for 16mm lug width is compatible with the Datejust 31 178344-0057. Always verify that the internal lug-to-lug measurement is correct before purchase. Bespoke straps from Casati Milano are crafted to order and carry an 18-month guarantee against manufacturing defects.
How long does a leather strap last on a Rolex Datejust 31?
The lifespan of a leather strap depends on craftsmanship quality and usage patterns. A high-quality alligator or vegetable-tanned calf strap typically lasts 5–8 years with regular daily wear. Leather must be protected from excessive moisture and perspiration. Casati Milano recommends rotating multiple straps to extend the life of each.
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