Patek Philippe · Grand Complications

Strap for Perpetual Calendar 5496P Silver

Takes 20 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width20 mm
Case diameter40 mm
Reference5496P-001
FamilyGrand Complications
MovementPatek Philippe caliber 324 S QR Hours, Minutes, Seconds | Date, Day, Leap Year, Month, Perpetual Calendar | Moonphase
CasePlatinum

Spring bar

Swiss Standard universal spring bars

The right category for this model · 316L steel, all lug widths 13–26 mm

Straps for the Grand Complications 5496P-001

Selected for the 20 mm lug width · workshop selection

All 20 mm straps →

The Grand Complications 5496P-001, seen from the bench

The Patek Philippe Grand Complications 5496P-001 is a perpetual calendar watch with retrograde day and date indications, housed in a 39.50 mm platinum 950 case. Powered by the automatic caliber 324 S QR movement with Parachrom spiral, it displays hours, minutes, seconds, date, day, month, year, leap year indication, and moonphase. The lug width is 20 mm. Assembled in Geneva, this Grand Complication achieves chronometric precision of ±3 seconds per day.

Frequently asked questions

What is the lug width of the Patek Philippe Grand Complications 5496P-001?

The lug width (ansa width) of the Patek Philippe Grand Complications 5496P-001 is precisely 20 millimetres. This measurement refers to the perpendicular distance between the upper and lower lugs of the platinum case. A compatible 20mm strap will insert perfectly without play or excessive tension on the wrist.

What is the best strap for the Patek Philippe 5496P-001?

The optimal strap choice depends on intended use. For formal wear: vegetable-tanned alligator in black or cognac, combining leather nobility with the platinum case's severity. For versatility: vegetable-tanned calf, available in multiple shades (black, cognac, burgundy). For those desiring natural patina evolution: dark brown shell cordovan. All straps must feature a deployante with secure clicking mechanism for comfort during fastening.

How do I change the strap on my Patek Philippe 5496P-001?

The 5496P-001 features fixed lugs (non-removable), requiring expert intervention to extract the pin through the lug and install the new strap. Do not attempt alone to avoid case damage. We recommend Casati Milano: our Milan atelier guides you through the replacement, ensuring the strap is perfectly aligned and the pin reinserted with correct torque specifications.

Can I use an aftermarket compatible strap on my Patek Philippe Grand Complications?

Yes, provided the strap is certified 20mm and manufactured from premium materials. A high-quality aftermarket alligator or vegetable-tanned calf strap with a deployante engineered for Patek Philippe lugs neither compromises the watch's value nor functionality. We recommend straps featuring saddle stitching and premium finishing, such as those from Casati Milano.

How long does a leather strap last on the Patek Philippe 5496P-001?

A premium leather strap (alligator, calf, cordovan) in vegetable tanning lasts approximately 4–7 years with regular daily wear, subject to periodic maintenance. Humidity and sunlight exposure accelerate deterioration. A Casati Milano strap includes 18-month warranty on manufacturing defects, but actual longevity depends on wear patterns and storage. We recommend rotating straps to extend each strap's 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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Casati Milano · Via XX Settembre 15, Milan · by appointment only