Rolex
Lady-Datejust 179174-0094— lug 13mm

The lug width of the Rolex Lady-Datejust 179174-0094 is 13mm. This is a non-standard measurement compared to the most common watch straps available on the market. Before purchasing an aftermarket strap, it is essential to verify this specification by measuring the internal distance between the case lugs with a digital calliper.

For the Lady-Datejust 179174-0094 in white gold and steel, a smooth alligator strap with vegetable tanning is the most coherent choice given the aesthetic register of the case. Alternatively, vegetable-tanned calf leather or shell cordovan offer excellent quality and develop a distinctive patina over time. A deployant clasp in steel or white gold ideally completes the pairing.

Replacing the strap on the Lady-Datejust 179174-0094 requires a dedicated screwdriver for threaded spring bars, as Rolex uses screwed bars rather than standard push-pin spring bars. Unscrew the bar from the outside of the lug, remove the old strap, and fit the new one, taking care with the screw direction. It is advisable to work on a soft surface to avoid scratching the case.

Yes, aftermarket straps compatible with the Lady-Datejust 179174-0094 exist, provided they respect the 13mm lug width and feature threaded bar holes with a pitch compatible with Rolex lugs. Milano Straps produces artisan straps specifically made for this size, available in various leathers and finishes, with shaped ends to match the curvature of the Lady-Datejust lugs.

The lifespan of a leather strap depends on the type of leather, care, and frequency of use. A quality alligator strap, properly maintained, can last between three and five years while retaining its structural integrity and appearance. Vegetable-tanned calf leather develops a patina but tends to deteriorate more quickly under humid conditions. It is recommended to rotate between multiple straps and to apply a specialist leather conditioner periodically.