Patek Philippe · Complications

Strap for World Time 5231 White Gold / Oceania & South-East Asia

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

Lug width20 mm
Case diameter39 mm
Reference5231G-001
FamilyComplications
MovementPatek Philippe caliber 240 HU Hours, Minutes, World Time, Day / Night Indication
CaseYellow 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 Complications 5231G-001

Selected for the 20 mm lug width · workshop selection

All 20 mm straps →

The Complications 5231G-001, seen from the bench

The Patek Philippe Complications 5231G-001 features a 38.50 mm yellow gold case with a caliber 240 HU automatic movement. The dial displays a Grand Feu cloisonné enamel world time depiction of the Americas, a technique requiring dozens of hours of hand work with gold wires. Lug width is 20 mm, chosen to ensure comfortable wear on medium to large wrists without oversizing the case proportions. Water resistance is rated at 30 meters.

Frequently asked questions

What is the lug width of the Patek Philippe Complications 5231G-001?

The lug width of the Patek Philippe Complications 5231G-001 is 20 mm. This measurement is verified by inserting a ruler between the inner edge of the first lug and the inner edge of the second lug. All 20 mm straps are compatible with this model.

What is the best strap for the Patek Philippe Complications 5231G-001?

For the 5231G-001, straps in dark brown or black alligator represent the most harmonious choice: the cloisonné dial with turquoise oceans and gold continents pairs perfectly with these tones. Shell cordovan and vegetable-tanned calf are excellent alternatives for those who appreciate a patina that develops over time.

How do I change the strap on the Patek Philippe Complications 5231G-001?

Changing the strap requires extracting the lug pins from the case. Equip yourself with a specific extraction tool (a thin screwdriver or pin extractor). Position the watch on a soft surface, locate the small hole on the case side, insert the tool, and extract the pin: the strap will release. Contact an authorised Patek Philippe service centre if you are not confident with this operation.

Can I use an aftermarket-compatible strap on the Patek Philippe Complications 5231G-001?

Yes, a high-quality artisanal strap with certified compatibility, featuring a 20 mm lug width and crafted from noble materials (alligator, cordovan, vegetable-tanned leather), is fully compatible and does not affect the watch's warranty. Choosing a specialised artisan, such as Casati Milano, ensures geometric compatibility and longevity.

How long does a leather strap last on a Patek Philippe Complications 5231G-001?

A high-quality leather strap, with ordinary care, lasts 3-5 years of daily wear. Shell cordovan and superior-grade alligator can last beyond 7-8 years. Vegetable-tanned leather develops a patina that makes it more distinctive over time. Periodic maintenance—gentle cleaning and conditioning with natural wax—significantly extends the life of the strap.

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