Patek Philippe Grand Complications 5320G-001 Perpetual Calendar Review
November 14, 2025Patek Philippe is credited with releasing the first perpetual-calendar wristwatch in 1925 (movement no. 97975). Almost a century later, the brand continues to set the standard for high-end calendar watches. It’s always something special when Patek Philippe releases a new perpetual calendar watch. The Patek Philippe Grand Complications 5320G-001, introduced at Baselworld 2017, carries that legacy forward with a blend of vintage style and modern precision.
Here at Precision Watches, an authorized Swiss watch retailer in Lower Gwynedd Township, PA, we always appreciate the chance to handle a piece like this. The 5320G-001 brings together the charm of 1960s design cues with today’s craftsmanship, creating a perpetual calendar that feels both nostalgic and current.
Let’s take a closer look at what makes this perpetual calendar watch such a sought-after masterpiece.
Specifications of the Patek Philippe Grand Complications 5320G-001
The 5320G-001 features an 18k white-gold case paired with an ivory lacquer dial. It showcases the full perpetual calendar layout with day, date, month, moonphase, leap-year indicator, and day/night display. The warm cream tone of the dial gives the watch a soft, vintage glow that immediately stands out from many modern perpetual calendars.
Case and Size
The Patek Philippe 5320G-001 features a 40 mm case made from 18k white gold. The case is a single piece of gold. 40mm really is the sweet spot. It has a slim profile at just over 11 mm thick. The cream/ivory dial and white-gold case give it a refined and dress-watch feel. The case has design elements influenced by previous models from the 1960s, like the stepped lugs.
The 5320G-001 is not a remake, but it borrows some of the best elements of that era and brings them into a more modern piece.
How it Feels on the Wrist
Wearing it feels surprisingly balanced. At 40 mm, it’s not small, but the white-gold case has a comforting weight that never crosses into heavy. The lugs curve just right, so the watch sits low and hugs the wrist instead of floating above it.
The 5320G-001 is fitted on a glossy alligator leather strap with a 21 mm width at the lugs, finishing into an 18k white-gold fold-over clasp.
Dial Experience
The dial is where the 5320G-001 truly shines. We noticed more details every time we looked at it. The syringe-style hands don’t interfere with the vintage aesthetic. The applied Arabic numerals catch light softly, giving the watch a warm, almost instrument-like feel.
The perpetual calendar layout is classic Patek Philippe:
- Day and month at 12 o’clock
- Moonphase and date at 6 o’clock
- Leap-year and day/night indicators on each side
Despite the number of complications, the dial never looks busy. Readability stays strong in both bright and soft lighting. Under warm light, the cream tone deepens. The glossy lacquer finish becomes more noticeable under harsher light. We think the dial’s ability to change character adds to its charm.
Caliber 324 S Q
Inside the 5320G-001 is the Caliber 324 S Q, which builds on Patek Philippe’s well-known 324 base movement with an added perpetual calendar module.
Key features include:
- Gyromax balance
- Spiromax balance spring
- Large 21k gold rotor
- 367 total components
- Thin 4.97 mm profile
- 4 Hz beat rate
The movement is beautifully finished, with perlage on the main plate and beveling and Côtes de Genève on the bridges. While the finishing is excellent, collectors often note that it is slightly less ornate than brands like A. Lange & Söhne, something worth keeping in mind if decoration is a top priority. Power reserve ranges from 35 to 45 hours, which is modest for a modern luxury watch but perfectly fine for daily wear.
Patek Philippe Grand Complications Review | Final Thoughts
At Precision Watches, we always appreciate timeless design, history, and mechanical art.
It’s no secret that Patek Philippe makes some of the best perpetual calendar watches, and this watch is no exception. The watch feels familiar in all the right ways, from its mid-century case design to its balanced dial layout. If you love vintage-inspired aesthetics and clean perpetual calendar displays, the 5320G-001 will tug at your heartstrings.
As an authorized in-house Swiss watch repair center, Precision watches certifies guarantees every preowned timepiece that we sell. You can shop online or visit our store in Lower Gwynedd Township, PA, serving the Philadelphia and Montgomery County areas.
Curious about other luxury makes and models? Explore more of our selection of luxury watches and discover the craftsmanship behind today’s finest timepieces.
