Technical Archive

Patek Philippe
Complications 5960P-001— lug 21mm

Patek Philippe Complications 5960P-001: 21mm strap. Alligator, box calf, shell cordovan and rubber, cut and stitched in Milano. Choose your leather.

Annual Calendar Chronograph 5960 Platinum / Grey

Artisanal Note

"This model requires a precise 21mm lug width to preserve the original sartorial balance."

Technical Specifications

Patek Philippe 5960P-001
Lug Width
21 mm

The essential strap measurement.

Browse 21mm straps →
Reference

5960P-001

Movement

Patek Philippe caliber CH 28-520 IRM QA 24H Day / Night Indication, Hours, Minutes | Annual Calendar, Date, Day, Month | Chronograph, Column wheel, Flyback | Power Reserve Indicator

The Heritage

The Patek Philippe Complications 5960P-001 Annual Calendar Chronograph is a 40.5mm platinum case watch powered by the CH 28-520 IRM QA 24H caliber. This manually-wound movement operates at 4 Hz and features a flyback chronograph with column wheel, annual calendar, day/night indicator, and 48-hour power reserve. The 21mm lug width is designed to maintain visual balance with the case proportions and the compact 12.5mm thickness. This platinum case acquires a natural patina over time while remaining corrosion-resistant.

FAQ

What is the exact lug width of the Patek Philippe Complications 5960P-001?

The Patek Philippe Complications 5960P-001 features a lug width of 21mm. This measurement refers to the distance between the centres of each lug seat. Verifying this dimension before purchasing a strap is essential, as even a 1mm deviation can compromise proper fit and passant alignment.

Which strap is most suitable for the 5960P-001?

For the 5960P-001 in platinum, top-grade alligator remains the institutional choice: its natural, symmetrical texture enhances the metal's austerity. Horween shell cordovan offers a more intimate alternative and ages beautifully. Vegetable-tanned calf provides versatility for those seeking flexibility, whilst structured rubber is permissible only in sporting contexts with generous thickness.

How do I change the strap on the Patek Philippe 5960P-001?

Use a spring bar tool to gently extract the springs securing the strap to the lug seats. Insert the flat end into the seat slot, compress the spring inward, and slide the strap free. For installation, align the spring with the slot and gently insert the strap until the spring locks. Avoid forcing to prevent scratching the platinum case.

Is a 21mm aftermarket strap compatible with the 5960P-001?

Yes, any strap with a precise 21mm lug width is compatible with the 5960P-001. Specialist manufacturers such as Casati Milano provide bespoke straps for this width, ensuring perfect fit without play or excessive tension. We recommend straps with 1.2–1.5mm thickness to maintain balanced proportions.

How long does a leather strap last on a watch like the 5960P-001?

A quality leather strap, worn daily, typically lasts 3–5 years. Humidity, sun exposure, and frequency of wear influence longevity. Shell cordovan tends to last longer owing to the nature of equine leather. Regular maintenance—protection from perspiration and moisture, conditioning every 6–12 months—significantly extends strap lifespan.

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