Patek Philippe · Grand Complications

Strap for Minute Repeater Perpetual Calendar 5374 White Gold / Blue

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

Lug width20 mm
Case diameter42 mm
Reference5374G-001
FamilyGrand Complications
MovementPatek Philippe caliber R 27 Q Hours, Minutes, Small Seconds | Date, Day, Leap Year, Month, Perpetual Calendar | Moonphase | Minute Repeater
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 5374G-001

Selected for the 20 mm lug width · workshop selection

All 20 mm straps →

The Grand Complications 5374G-001, seen from the bench

The Patek Philippe Grand Complications Ref. 5374G-001 is a platinum sports watch with 42mm case diameter and 20mm lug width. It houses the caliber R 27 Q movement, featuring 564 components including a minute repeater and perpetual calendar function correcting automatically until 2100. The 950 platinum case combines polished and satin surfaces, embodying over 180 years of Geneva watchmaking tradition.

Frequently asked questions

What is the lug width of the Patek Philippe Grand Complications 5374G-001?

The Patek Philippe Grand Complications Ref. 5374G-001 features a 20mm lug width. This measurement is critical for aftermarket strap compatibility and must be verified precisely using a calliper or millimetre ruler, measuring the internal space between the lug slots on the platinum case.

What is the best strap for the Patek Philippe Grand Complications 5374G-001?

Alligator remains the natural choice for the 5374G-001: the cartographic grain of the leather dialogues with the formal rigour of the platinum case. Shell cordovan represents an elegant alternative with lustrous patination over time, whilst vegetable-tanned calf offers initial softness. We recommend dark tones: cognac brown, deep black, or petrol blue.

How do I change the strap on my Patek Philippe Grand Complications 5374G-001?

Position the watch on a soft surface (microfibre cloth). Use professional tools — a quality spring bar tool or strap removal bar — to gently lift the pins binding the strap to the lugs. Insert the new 20mm strap, aligning the holes perfectly with the pins, then secure. We recommend entrusting this task to a certified Patek Philippe service centre to preserve case integrity.

Can I use a third-party strap on my Patek Philippe Grand Complications 5374G-001?

Yes, provided the lug width is exactly 20mm. Quality straps — such as those crafted by Casati Milano in alligator or shell cordovan with vegetable tanning — guarantee both aesthetic and technical compatibility. Verify that attachment pins align with the internal lug slots and that no lateral gaps appear.

How long does a leather strap last on the Patek Philippe Grand Complications 5374G-001?

Durability depends on material and usage frequency. Quality alligator, with controlled tanning, lasts 4-6 years under daily wear. Shell cordovan extends to 5-7 years thanks to compact fibre structure, whilst vegetable-tanned calf requires replacement every 3-4 years. Regular maintenance — gentle cleaning and conditioning with specific balms — 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.

Request an appointment →

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