Patek Philippe · Grand Complications

Strap for Perpetual Calendar Split Seconds Chronograph 5004 White Gold / White Arabic

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

Lug width20 mm
Case diameter37 mm
Reference5004G-013
FamilyGrand Complications
MovementPatek Philippe caliber CHR 27-70 Q hours, minutes, small seconds | date, day, leap year, month, perpetual calendar | Chronograph, column wheel, Rattrapante
Year1996 - 2011
CaseWhite Gold

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 5004G-013

Selected for the 20 mm lug width · workshop selection

All 20 mm straps →

The Grand Complications 5004G-013, seen from the bench

The Patek Philippe Grand Complications 5004G-013 is a 36.70 mm white gold case housing a split-seconds chronograph and perpetual calendar within the CHR 27-70 Q calibre, developed over a decade before its 1994 introduction and discontinued in 2011. The movement beats at 21,600 vibrations per hour and features a column wheel escapement, while the perpetual calendar automatically adjusts dates until year 2100. The lug width is 20 mm.

Frequently asked questions

What is the lug width of the Patek Philippe Grand Complications 5004G-013?

The lug width of the Patek Philippe 5004G-013 is 20 mm. This measurement represents the distance between the pins that anchor the strap to the case. To verify compatibility, measure the space between the two metal cylinders on the case lugs using a digital calliper. Precise measurement is essential to avoid purchasing errors.

What is the best strap for the Patek Philippe 5004G-013?

For the 5004G-013 in white gold, we recommend black or chocolate brown alligator for a classical aesthetic. Alligator offers uniform fine grain that does not compete visually with the case, ensuring discreet elegance. If you prefer a more contemporary look, vegetable-tanned calf develops authentic patina over years. For sporty use, a technical canvas NATO maintains formal rigour. Your final choice depends on intended use: formal, daily wear, or safe-kept.

How do you change the strap on a Patek Philippe Grand Complications?

To change the strap, obtain two small tools: a spring bar remover or a very thin screwdriver. Position the watch face-up on a soft surface. Locate the pin on the first lug, apply the tool into the small slot to push the pin towards the centre, then extract the old strap from the seat. Insert the new strap aligning the hole with the pin, reposition the pin into its seat and ensure it is firmly secured. Repeat for the opposite lug. Avoid excessive force: a Patek Philippe deserves care.

Is an aftermarket strap compatible with the Patek Philippe 5004G-013?

Yes, provided the strap has the correct 20 mm lug width. However, aftermarket strap quality must be consistent with the watch's value. Artisanal straps in alligator, calf or shell cordovan from specialised suppliers guarantee mechanical strength and aesthetics worthy of a Grand Complications. Avoid synthetic materials or universal shop straps: a Patek Philippe merits tailored craftsmanship and noble leathers.

How long does a leather strap last on a Patek Philippe?

Leather strap durability depends on material, usage and maintenance. Quality alligator, with moderate daily use, lasts 4-6 years before showing significant wear. Vegetable-tanned calf has similar longevity (4-7 years) but develops fascinating patina over time. Shell cordovan can last 8-10 years thanks to its natural hardness. To extend strap life, avoid prolonged water and direct UV exposure, and consider rotating between multiple straps if wearing the watch daily.

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