Technical Archive

Patek Philippe
Nautilus 3710/1A-001

Patek Philippe Nautilus 3710/1A-001: strap made to measure on the watch at the Casati Milano atelier, by appointment.

Nautilus Power Reserve 3710

Technical Specifications

Patek Philippe 3710/1A-001
Reference

3710/1A-001

Movement

Patek Philippe caliber 330 SC IZR Hours, Minutes, Seconds | Date | Power Reserve Indicator

The Heritage

The Nautilus 3710/1A-001 is powered by the Patek Philippe calibre 330 SC IZR with indications of hours, minutes, seconds, date and power reserve. The automatic movement guarantees chronometric precision according to the standards of the Geneva manufacture. The case features the characteristic integrated porthole design typical 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 strap be fitted to the Patek Philippe Nautilus 3710/1A-001?

The Nautilus lug system is an integral part of the case architecture: there is no standard lug that accepts conventional spring bars. A leather strap is entirely possible, but it must be built to measure directly on the watch by <a href="/pages/casati-booking">Casati Milano</a>. This is bespoke craft work that begins with taking actual dimensions from your specific piece, not from generic measurements.

How does the bespoke strap-making process work for this model?

The artisan at Casati Milano takes measurements directly from the watch during the appointment at the atelier, creating a pattern specific to that individual piece. Leather, colour, edge finishing and closure type are chosen together. The strap is then hand-crafted, stitched and finished piece by piece, resulting in a perfect fit with no forcing or play.

Which leather best suits the character of the Nautilus 3710/1A-001?

Smooth box-calf enhances the Nautilus's dual formal-sporting nature and develops a highly distinctive patina over time. Mississippi alligator with uniform square grain adds a register of understated luxury in keeping with the polished steel case. For a more dynamic style, a full-grain vegetable-tanned leather recalls the nautical spirit of the model with natural texture and dignified ageing.

How long does a well-made artisan strap last?

A quality leather strap, crafted from selected hide and hand-stitched with silk or waxed nylon thread, typically lasts between five and ten years with daily wear, provided basic maintenance is observed. Longevity depends on the leather chosen, exposure to perspiration and moisture, and periodic conditioning. A bespoke strap, thanks to its precise fit, wears evenly and retains its shape longer than an off-the-shelf alternative.

What is the defining technical feature that sets the Nautilus 3710/1A-001 apart from other steel Nautilus references?

The 3710/1A-001 introduced the power reserve indicator to the Nautilus line — on an automatic movement, a complication that becomes a daily conversation between wearer and mechanism. Calibre 330 SC IZR combines hours, minutes, seconds, date and this function in a balanced dial layout. Produced between 1998 and 2006, this reference occupies a precise place in Nautilus genealogy: rarer than base models, less media-exposed than later successors, and appreciated by those who know the family in depth.

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