Technical Archive

Patek Philippe
Twenty~4 4910G-001

Patek Philippe Twenty~4 4910G-001: strap made to measure on the watch at the Casati Milano atelier, by appointment.

Twenty~4 4910 White Gold

Technical Specifications

Patek Philippe 4910G-001
Reference

4910G-001

Movement

Patek Philippe caliber E15 Hours, Minutes

The Heritage

The rectangular case and integrated bracelet form an architectural unity. This model represents Patek Philippe's refined interpretation of feminine elegance and timeless modernity.
Made to Measure

The strap for this watch is made to measure

On the Patek Philippe Twenty~4 the bracelet is drawn as part of the case: no catalogue strap will fit. In the atelier we take the measurements on the watch itself and build the strap on the piece — that is the work of Casati Milano.

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FAQ

Can a standard strap be fitted to the Patek Philippe Twenty~4 4910G-001?

No. The bracelet is integrated into the case: there is no traditional lug to attach an off-the-shelf strap. The whole piece is designed as a single architectural block. If you want a strap on this watch, I build it directly on the watch, in the atelier.

How does the bespoke strap service work for this model?

I work by appointment only at <a href="/pages/casati-booking">Casati Milano</a>, Via XX Settembre 15, Milan. You bring the watch: I take the measurements directly from the case, study the geometry of the attachment, and build the strap by hand to that exact shape. There are no shortcuts with this model.

Which leather do I recommend for the Twenty~4 in white gold?

I prefer Mississippi alligator in pearl grey or midnight blue. White gold has a cold, dry light: a fine-grained leather in a restrained tone accompanies it without competing. I avoid warm tones — ochre, tobacco, honey — because they create a dissonance I notice every time I look at the wrist.

How long does a well-made strap last on a watch like this?

With minimal care — keeping it away from water, letting it breathe, rotating it if you own more than one — a well-worked alligator strap lasts five, even eight years. Quality leather does not deteriorate: it transforms. It takes the shape of the wrist, becomes softer, and tells the time it has lived through.

Was the Twenty~4 designed as a sports watch or a dress watch?

Patek Philippe launched it in 1999 with an active woman in mind — someone who wears the watch all day, not just in the evening. It is not a ceremony piece; it is an everyday watch. That tension between formal rigour and daily use is precisely what makes it interesting from a strap perspective too: the strap must hold the tone of the case without stiffening the gesture.

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