Technical Archive

Patek Philippe
Nautilus 7021/1G-001

Patek Philippe Nautilus 7021/1G-001: strap made to measure on the watch at the Casati Milano atelier, by appointment.

Nautilus 7021 White Gold / Diamond

Technical Specifications

Patek Philippe 7021/1G-001
Reference

7021/1G-001

Movement

Patek Philippe caliber 324 S C Hours, Minutes, Seconds | Date

The Heritage

The Nautilus was introduced in 1976 as a luxury sports watch designed by Gérald Genta. The 7021/1G-001 reference features the automatic caliber 324 S C with indication of hours, minutes, seconds and date. White gold case with the characteristic porthole design of the Nautilus collection.
Made to Measure

The strap for this watch is made to measure

On the Patek Philippe Nautilus 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.

Book a consultation →

FAQ

Can a standard strap be fitted to the Patek Philippe Nautilus 7021/1G-001?

No. The bracelet is integrated directly into the case: there is no traditional lug to attach a standard strap. The fitting is proprietary, designed by Genta as an inseparable part of the original project. To work on this watch, I build every strap to measure, directly on the watch, in the atelier.

How does the bespoke strap service work for this Nautilus?

I work exclusively by appointment at <a href="/pages/casati-booking">Casati Milano</a>, at Via XX Settembre 15 in Milan. I bring the watch to the bench, take measurements directly from the case and shape every millimetre by hand. There are no templates: each strap is built from scratch on that specific piece.

Which leather do I recommend for a white gold Nautilus?

For this model I choose Barenia. It is a leather that ages with intelligence: it develops a progressive patina, adapts to the wrist and gains character with wear. On a white gold Nautilus — which has a sporting soul but an elegant presence — Barenia finds its natural balance without overpowering the case.

How long does a well-made artisan strap last?

A strap built with quality leather and hand-stitched easily lasts five to ten years, sometimes longer. It depends on how it is worn and how much care is given: avoid water, let it dry away from heat sources, rotate it with a second strap if worn frequently. Barenia, in particular, improves with time — I see it at the bench every season.

Is the Nautilus truly designed for someone who wants a sporting yet elegant watch?

Genta drew it in 1976 with a precise idea: a watch that could be worn at the seaside and at dinner. The porthole case in white gold of the 7021/1G-001 carries that philosophy into more precious territory without betraying it. It is not a compromise between two worlds — it is a clear statement of character, one I have seen work on very different wrists.

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