Patek Philippe · Nautilus

Strap for Nautilus 7118 Stainless Steel / White

Integrated bracelet: measurements, the most common questions, and the way to a made-to-measure strap.

Integrated bracelet

The Patek Philippe Nautilus 7118/1A-010 is designed with a bracelet integrated into the case. For a compatible made-to-measure strap, the Casati Milano atelier builds it on your watch.

Case diameter35 mm
Reference7118/1A-010
FamilyNautilus
MovementPatek Philippe caliber 324 S C hours, minutes, seconds | date
Year2017 - 2025
CaseStainless Steel

Spring bar

Swiss Standard universal spring bars

The right category for this model · 316L steel, all lug widths 13–26 mm

The Nautilus 7118/1A-010, seen from the bench

The Nautilus ref. 7118/1A-010 is a 35.2mm stainless steel women's watch designed by Gérald Genta in 1976, embodying refined sports watchmaking. The model features the iconic octagonal integrated case and bracelet architecture with distinctive porthole design. Its geometric purity and elegant lines represent timeless haute horlogerie craftsmanship.

Frequently asked questions

Can a standard strap be fitted to the Patek Philippe Nautilus 7118/1A-010?

No. The bracelet is integrated into the case with a proprietary attachment: no standard aftermarket strap clips on directly. For this reason I always work in the atelier, building the attachment by hand on the physical watch. It is the only way to achieve a clean result.

How does the bespoke strap service work for this Nautilus?

Everything goes through <a href="/pages/casati-booking">Casati Milano</a>, by appointment only, at Via XX Settembre 15 in Milan. I take the watch to the bench, measure directly from the case and shape the attachment by hand, tenth of a millimetre at a time. I do not work from photographs or spec sheets: the watch needs to be in front of me.

Which leather do you recommend for this model?

For the Nautilus I choose aged Barenia, without hesitation. The satin and polished steel of this case calls for a leather with its own character, one that changes over time rather than staying anonymous. Barenia develops a patina that works with the metal in a natural way, without overpowering it. It is the right leather for a sports watch that does not sacrifice elegance.

How long does a well-made leather strap last?

Five, even eight years with regular wear, provided the leather is of good quality and properly cared for. A few simple habits are enough: keep it away from prolonged contact with water, let it breathe after an intense day, apply a little neutral cream once a year. Good leather does not deteriorate — it ages, and with time it becomes more interesting.

Is the Nautilus really an everyday watch, or is it better saved for special occasions?

Gérald Genta designed it in 1976 precisely to break that distinction: steel case, sporting soul, yet built to the standards of fine watchmaking. I have seen Nautilus watches worn every day for years, and they hold up. The stainless steel is robust, and the octagonal case geometry is built to last. Keeping it locked away would be a shame.

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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Casati Milano · Via XX Settembre 15, Milan · by appointment only