Technical Archive

Patek Philippe
Complications 5146P-001— lug 20mm

Patek Philippe Complications 5146P-001: 20mm strap. Alligator, box calf, shell cordovan and rubber, cut and stitched in Milano. Choose your leather.

Annual Calendar 5146 Platinum / Grey

Artisanal Note

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

Technical Specifications

Patek Philippe 5146P-001
Lug Width
20 mm

The essential strap measurement.

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Reference

5146P-001

Movement

Patek Philippe caliber 324 S IRM QA LU Hours, Minutes, Seconds | Date, Annual Calendar, Day, Month | Moonphase | Power Reserve Indicator

The Heritage

The Patek Philippe Complications 5146P-001 is a platinum timepiece featuring the patented Annual Calendar mechanism, which automatically distinguishes between 30 and 31-day months and requires adjustment only once yearly on February 28th. The 39.00 mm platinum 950 case houses the caliber 324 S IRM QA LU movement beating at 21,600 vibrations per hour with 48-hour power reserve. Equipped with moon phase display and power reserve indicator, this model features a 20 mm lug width and represents the refined engineering of the Complications family.

FAQ

What is the lug width of the Patek Philippe Complications 5146P-001?

The Patek Philippe Complications 5146P-001 has a lug width of 20 mm, measured between the pins from inner shoulder to inner shoulder. This measurement is characteristic of Patek Philippe's Complications and Calatrava lines and requires careful attention when sourcing aftermarket straps to avoid incompatible sizes such as 22 mm.

What is the best strap for the platinum Patek Philippe Complications 5146P-001?

For the platinum 5146P-001, the recommended materials are high-quality alligator (dark brown or black tones) and vegetable-tanned calf leather (dark colours or burgundy). Alligator offers sophisticated natural texture, whilst vegetable-tanned calf allows for elegant ageing patina. Both materials enhance the chromatic sobriety of the platinum case.

How do I change the strap on the Patek Philippe Complications 5146P-001?

Strap replacement is accomplished by removing the pins with a specialised tool (spring bar tool). Since the 5146P-001 features tapered lugs, it is advisable to entrust the operation to a professional to prevent damage to the original pins or case. Casati Milano also offers strap-change services by appointment at the Milan atelier.

Which aftermarket strap is compatible with the Patek Philippe 5146P-001?

Any strap with a 20 mm lug width is compatible with the 5146P-001. Milano Straps offers a dedicated collection of artisanal straps in alligator, calf, shell cordovan and other materials, all tested for the refined proportions of this Complications model.

How long does a natural leather strap last on the Patek Philippe Complications 5146P-001?

A high-quality natural leather strap, whether vegetable-tanned or authentic alligator, guarantees an average lifespan of 3–5 years of daily use, depending on frequency of use and moisture conditions. Milano Straps provides an 18-month warranty on manufacturing defects and offers restoration and replacement services through the Casati Milano atelier.

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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The atelier's website: casatimilano.com