Technical Archive

Patek Philippe
Complications 5131R-011— lug 20mm

Patek Philippe Complications 5131R-011: 20mm strap. Alligator, box calf, shell cordovan and rubber, cut and stitched in Milano. Choose your leather.

World Time 5131 Rose Gold / Earth

Artisanal Note

"This model requires a precise 20mm lug width to preserve the original sartorial balance."

Technical Specifications

Patek Philippe 5131R-011
Lug Width
20 mm

The essential strap measurement.

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Reference

5131R-011

Movement

Patek Philippe caliber 240 HU Hours, Minutes, World Time, Day / Night Indication

The Heritage

The Patek Philippe Complications reference 5131R-011 is equipped with the 240 HU caliber, offering indication of hours, minutes, world time and day/night indicator. The ultra-thin movement allows to simultaneously display the time of 24 time zones through a city disk. The World Time function enables the immediate reading of the local time and that of any selected city via the crown.

FAQ

What is the lug width of the Patek Philippe Complications 5131R-011?

The Patek Philippe Complications 5131R-011 features a lug width of 20mm. This measurement is standard for models in the Complications family and is compatible with any strap crafted for this dimension. To verify the lug width, simply measure the distance between the two holes where the spring bars are inserted on the inner side of the case.

Which strap is recommended for the Patek Philippe Complications 5131R-011?

For the Complications 5131R-011 in rose gold with a cloisonné dial, we recommend a mahogany-brown alligator strap or a vegetable-tanned calf leather strap. Alligator offers an elegant grain that harmonizes with the patina of rose gold, whilst vegetable-tanned calf provides superior structural rigidity and an even more fascinating ageing patina over time.

How do I change the strap on the Patek Philippe 5131R-011?

The original rose gold strap on the Patek Philippe 5131R-011 is removed by extracting the spring bars using a dedicated spring bar remover tool inserted into the lateral holes of the case. Once the spring bars are removed, the old strap slides out easily. Installation of the new strap is performed by reversing the procedure: insert the spring bars into the lugs until you hear a click. If you are inexperienced, we recommend contacting a specialised service centre.

Is an aftermarket strap compatible with the Patek Philippe 5131R-011?

Yes, any strap with a 20mm lug width is compatible with the Patek Philippe Complications 5131R-011. However, it is essential that the strap is crafted with materials and finishes worthy of a timepiece in this category: we recommend premium leathers such as alligator, vegetable-tanned calf, or shell cordovan, manufactured by artisans specialising in luxury watchmaking.

How long does a leather strap last on the Patek Philippe 5131R-011?

A premium leather strap crafted by hand has an average lifespan of 5-7 years with daily wear, varying depending on the tanning method and maintenance. Leather tanned with vegetable tannins has superior longevity compared to modern tanning methods, as it hardens gradually over time, creating a protective patina. Alligator and shell cordovan are particularly durable and improve aesthetically with ageing.

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