Milano Straps
← Patek PhilippeSearchCart
Menu

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 width

20mm
20 mm strapsAll Patek Philippe
Lug width20 mm
Case diameter37 mm
Reference5004G-001
FamilyGrand Complications
MovementPatek Philippe caliber CHR 27-70 Q Hours, Minutes, Small Seconds | Date, Day, Leap Year, Month, Perpetual Calendar | Chronograph, Column wheel, Rattrapante
CaseWhite Gold

Spring bar

Swiss Standard universal spring bars

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

View →

Straps for the Grand Complications 5004G-001

Selected for the 20 mm lug width · workshop selection

All 20 mm straps →

The Grand Complications 5004G-001, seen from the bench

The Patek Philippe Perpetual Calendar Split Seconds Chronograph ref. 5004G-001 in 18-karat white gold combines a perpetual calendar and split-seconds chronograph in a single movement. The case measures 36.70 mm in diameter with a 20 mm lug width. Powered by the caliber CHR 27-70 Q, featuring a column wheel mechanism, the watch displays hours, minutes, seconds, date, day, month, and leap year indication on a champagne-silver dial. The perpetual calendar is programmed until the year 2100.

Frequently asked questions

What is the exact lug width of the Patek Philippe Grand Complications 5004G-001?

The lug width of the 5004G-001 is 20 millimetres, measured between the primary and secondary attachment points on the case. This metric is Patek Philippe's historical standard for dress watches and ensures precise compatibility with artisanal-quality straps. We recommend verifying with a digital caliper before any purchase.

Which strap is most suitable for the white gold Patek Philippe 5004G-001?

Alligator with vegetable tanning is the natural choice: orderly scales create a geometry that harmonises with the watch's rigorous design, whilst vegetable tanning develops patina over time. Shell cordovan offers a bolder alternative thanks to its pronounced grain and polishing capability. For maximum elegance, select deep black or tobacco brown.

How should the strap on a Patek Philippe 5004G-001 be changed safely?

Always entrust a specialist to avoid case damage. Casati Milano offers in-atelier strap changing on appointment, with warranty and direct consultation. Alternatively, use a dedicated spring bar tool, gently pressing only one elastic pin at a time, without force.

Is an aftermarket 20mm strap compatible with the 5004G-001?

Yes, provided the strap has been constructed specifically for 20mm lug width. Artisanal straps from Casati Milano or specialised manufacturers guarantee metric precision and respect for Patek Philippe's historical proportions. Avoid generic 'one-size-fits-all' straps.

How long does a quality leather strap last on the 5004G-001?

A premium alligator or shell cordovan strap, under normal wear conditions, maintains structural integrity for 4–6 years. Vegetable-tanned leather develops patina rather than degrading, enriching its appearance over time. Longevity depends on usage frequency, humidity exposure, and periodic maintenance with specialised creams.

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.

Request an appointment →

Casati Milano · Via XX Settembre 15, Milan · by appointment only