Patek Philippe · Nautilus

Strap for Nautilus 5980 Blue

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

Integrated bracelet

The Patek Philippe Nautilus 5980/1A-001 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 diameter41 mm
Reference5980/1A-001
FamilyNautilus
MovementPatek Philippe caliber CH 28-520 C hours, minutes | date | Chronograph, column wheel
Year2006 - 2014
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 5980/1A-001, seen from the bench

The Nautilus 5980/1A-001 is a sporty chronograph from Patek Philippe that combines the classic lines of the model with the chronograph complication. It is powered by the automatic Caliber CH 28-520 C with column wheel, featuring hour, minute, date and chronograph functions. The case is made of stainless steel with the characteristic octagonal design of the Nautilus.

Frequently asked questions

Can a standard strap be fitted to the Patek Philippe Nautilus 5980/1A-001?

No. The bracelet is integrated directly into the case: there are no standard lugs to attach an off-the-shelf strap. The attachment is proprietary and every millimetre is designed in continuity with the case itself. In the atelier I build the strap to measure, working directly on the watch.

How does the bespoke strap service work for this Nautilus?

Everything goes through <a href="/pages/casati-booking">Casati Milano</a>, by appointment, at Via XX Settembre 15 in Milan. I bring the watch to the bench and take measurements directly from the case: curves, angles, thicknesses. I do not work remotely on this type of piece, because every 5980/1A has its own wear history and deserves a truly tailored approach.

Which leather do I recommend for this Nautilus?

For a watch that is born sporty but also lives in formal settings, my choice goes to Tuscan vegetable-tanned leather. It has character, wears well with both a shirt and a blazer, and over time develops a patina that tells the story of use. If the intention is ceremonial, I move to Mississippi Alligator: the texture works well with the satin and polished surfaces of the steel.

How long does a well-made bespoke strap last?

With minimal care — keeping it away from prolonged water exposure and conditioning the leather every few months — a strap built to correct measurements easily lasts six, eight, even ten years. Quality leather does not deteriorate: it ages. It changes colour, softens, becomes more personal. That is the whole point.

The Nautilus was born in 1976 — what makes the chronograph version different from the original?

Gérald Genta's design has remained recognisable, but the chronograph adds a mechanical complexity that changes the character of the watch on the wrist. It is not simply one more complication: the case houses a more articulated movement and the dial reorganises itself around the counters. I have seen a fair number of examples on the bench — the weight and presence are noticeably different from the three-hander.

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