Technical Archive

Rolex
Lady-Datejust 279178-0029— lug 14mm

Rolex Lady-Datejust 279178-0029: 14mm strap. Alligator, box calf, shell cordovan and rubber, cut and stitched in Milano. Choose your leather.

Lady-Datejust 28 Yellow Gold Fluted / President / White Roman

Artisanal Note

"This model requires a precise 14mm lug width to preserve the original sartorial balance."

Technical Specifications

Rolex 279178-0029
Lug Width
14 mm

The essential strap measurement.

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Reference

279178-0029

Movement

Rolex caliber 2236 Hours, Minutes, Seconds | Date | Chronometer

The Heritage

The Lady-Datejust represents the female version of Rolex's Datejust collection, equipped with hour, minute, second and date functions. It is powered by the automatic Caliber 2236 movement, chronometer-certified. The case features 14mm lugs for the strap.

FAQ

What is the lug width of the Rolex Lady-Datejust 279178-0029?

The Rolex Lady-Datejust 279178-0029 has a lug width of 14mm. This measurement is specific to the 28mm case and should be verified with a digital calliper between the lugs before purchasing any aftermarket strap.

What is the best strap for the Rolex Lady-Datejust 279178-0029?

For the yellow gold version of the Lady-Datejust 279178-0029, the most suitable straps are Louisiana alligator in cognac, honey or bordeaux tones, or vegetable-tanned calf leather with a smooth finish. Both options complement the gold case without competing visually with the dial. Rubber with a fine texture is the recommended choice for sporting use.

How do you change the strap on a Rolex Lady-Datejust 279178-0029?

To replace the strap or bracelet on the Lady-Datejust 279178-0029, the spring bars must be removed from the 14mm lugs using a dedicated spring bar tool. It is advisable to rely on a watchmaker or specialist atelier to avoid scratching the solid yellow gold lugs. Casati Milano offers this service by appointment.

Are there aftermarket straps compatible with the Rolex Lady-Datejust 279178-0029?

Yes. Several artisan manufacturers produce aftermarket straps with a 14mm attachment compatible with the Lady-Datejust 279178-0029. It is essential to use 1.8mm diameter spring bars and thin linings to avoid putting stress on the gold lugs. Milano Straps offers a dedicated selection of 14mm straps suited to this reference.

How long does a leather strap last on a Rolex Lady-Datejust 279178-0029?

The lifespan of a leather strap on the Lady-Datejust 279178-0029 depends on frequency of use and the quality of the tanning process. A quality alligator or vegetable-tanned calf leather strap, with moderate daily use and proper care — kept away from water and perfumes — typically lasts between two and four years. Casati Milano straps carry an 18-month warranty covering 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.

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By appointment only · Milan

The atelier's website: casatimilano.com