The new Patek Philippe Ref. 5204G-010 brings fresh energy to one of the brand’s most revered grand complications, pairing timeless mechanics with a bolder, more expressive design!
Patek Philippe has refreshed one of its most revered grand complication timepieces, bringing back the Ref. 5204G with a far bolder personality than before. This is one of my personal favourite grand complication watches in Patek Philippe’s lineup, so to see it make a comeback in a more expressive form is genuinely exciting.
While the previous 5204G-001 leaned into a more contemporary elegant design with its olive green sunburst dial, this new 5204G-010 feels more dynamic and purpose-driven, pairing its beautiful navy blue soleil dial and red chronograph accents with the welcome addition of a tachymeter scale. It means this split-seconds perpetual calendar chronograph not only looks more modern and expressive, but now feels even more aligned with the sporting functionality at the heart of the complication itself.
First introduced in 2012, the Ref. 5204 completed Patek Philippe’s traditional chronograph trilogy, built around the brand’s proprietary chronograph calibres, adding the highest level of complexity to the lineup. And combining a perpetual calendar with a split-seconds chronograph is, honestly, as good as it gets. While the Ref. 5204 wasn’t the first time Patek Philippe had united these two complications in a wristwatch, it represented a new-generation interpretation of one of the manufacture’s most revered watchmaking formulas.
A Timeless Design Sharpened For Today
This latest Ref. 5204G-010 is presented in a 40mm white gold case with a thickness of 14.3mm, retaining the same elegant proportions as the previous Ref. 5204G-001. The case is distinctly vintage-inspired, with a classically round architecture that perfectly suits the high-complication nature of this timepiece. Personally, I don’t think there’s a better case design suited to this dial, but then again, I’ve always been biased towards classic watch designs.
One of the standout details of the case design is the use of long, slightly more pronounced claw-style lugs, which give the timepiece its vintage-inspired edge. These elongated lugs also give the case extra character and are part of what makes the 5204G feel a little more expressive than, say, your standard dress chronograph.
The case also features a sandwich-style construction, which adds another subtle layer of depth and character to the overall design of the Ref. 5204G-010. This multi-part approach to its construction helps break up the case profile nicely, giving it a more sculpted look from the side while also highlighting the different finishes across the case. This multi-part construction not only enhances the visual appeal of the watch, but also showcases Patek Philippe’s high level of craftsmanship in its grand complications.
While the case design is certainly elegant and a thing of beauty, an impressive detail that stood out for me is the interchangeable caseback. Not many watchmakers offer this choice, but Patek Philippe isn’t afraid to venture down this road, allowing the wearer to opt for a sapphire crystal caseback to admire the beauty of the movement, or a solid white gold option for a more traditional, understated feel. It is a thoughtful detail that adds another layer of versatility to the timepiece, even if the caseback exchange itself is something Patek Philippe reserves for its authorised watchmakers.
The dial is presented in a stunning navy blue colour, with a sunburst effect that shifts lightly in shade depending on the angle of the light. It also features varied finishing techniques, with the main dial and sub-dials given a vertical brushed finish, while the rings of the sub-counters are rendered in a straight matt navy blue finish. This contrast not only helps distinguish the counters, but also gives the dial added depth in a subtle yet meaningful way.
The dial’s perpetual calendar functionality is split across various parts of the display. Firstly, we have the day of the week and the month shown through two apertures beneath the 12 o’clock hour marker, while directly opposite, the 6 o’clock sub-dial displays the date indication along with the moon phase. On either side of this sub-dial are two recessed apertures: the one at 5 o’clock shows the leap year indicator, letting the wearer know where they are in the four-year cycle, while the cutout at 7 o’clock displays the day and night indicator.
The split-seconds chronograph function is shown through the 30-minute counter at 3 o’clock, while the 9 o’clock sub-dial showcases the small seconds. Then, of course, we have the newest addition to the 5204G, which is the tachymeter scale positioned on the outer edge of the dial, beyond the hour markers. While this does present a busier dial aesthetic, I personally love it, as it leans into the watch’s complexity and showcases it outright on the dial. And although it appears busy, every detail remains easy to read, with all the indications presented in white, contrasting beautifully against the deep blue dial.
A Grand Complication Engineered To Impress
The Ref. 5204G-010 is powered by Patek Philippe’s manually wound CHR 29-535 PS Q calibre, one of the brand’s most respected grand complication movements. Combining two of the most complex traditional complications in a split-seconds chronograph and perpetual calendar, the CHR 29-535 PS Q calibre is developed and manufactured entirely in-house. The movement features classic chronograph architecture through the use of two column wheels and a horizontal clutch.
It’s not just the integration of two complications that makes this movement so impressive either. Patek Philippe has incorporated seven patented innovations, including an optimised tooth profile for the chronograph wheel, self-adjusting penetration depth of the clutch wheels, an improved chronograph coupling system, an isolating mechanism for the split-seconds function, a new split-seconds clamp system, an improved split-seconds re-engagement system, and an optimised chronograph reset mechanism. All of these come together to improve efficiency, reliability, and precision without compromising the movement’s traditional layout.
In terms of the functionality of the perpetual calendar, Adjustments to this complication are made via recessed corrector pushers integrated into the caseband, rather than through the crown, a traditional approach that preserves the integrity of the movement. Meanwhile, the chronograph operates via a classic two-pusher layout, with an additional pusher discreetly integrated into the crown to control the split-seconds function.
Initial Thoughts
What I personally love most about this new Ref. 5204G-010 is just how much more bold in design it feels compared to the previous model. The navy blue soleil dial already gives the watch a strong visual presence, especially with how the white dial inscriptions beautifully contrast with it, but it’s the red chronograph hands and accents that really bring the whole design to life. It’s the touches of red that take an already impressive dial to one that makes it even more eye-catching, enhancing the wrist presence of this timepiece further.
Against the blue and white tones of the dial, the red adds a welcome burst of colour and energy, making the watch feel that little bit sportier and more modern without taking away from its grand complication pedigree. And with the addition of the tachymeter scale, it finally feels like the split-seconds chronograph is being visually celebrated in the way it deserves.
The Ref. 5204G-010 was created not simply to be mechanically impressive, but to reflect the values that define Patek Philippe’s greatest chronographs: a manual winding movement filled with several patented innovations, traditional construction, fine finishing, and high complications executed in a highly wearable wristwatch format. Beneath the bold exterior is still the same beautifully traditional grand complication at heart, which is exactly why this remains one of my favourite watches in Patek Philippe’s lineup.
Patek Philippe Grand Complications
Reference & Specifications
| Feature | Specifications |
|---|---|
| Reference | 5204G-010 |
| Dimensions | 40mm x 14.3mm |
| Case | 18K white gold with multi-part construction and polished surfaces |
| Crystal | Domed sapphire with an anti-reflective coating |
| Dial | Sunburst navy blue, white gold applied faceted “obus”-style hour markers. Tachymeter scale. 18K gold dial plate. White gold faceted dauphine-style hands with white luminescent coating. |
| Caseback | Interchangeable between transparent sapphire crystal and 18k white gold hard caseback. |
| Movement | Manual-wound in-house calibre CHR 29-535 PS Q, beating at a frequency of 4Hz (28,800 VpH) |
| Functions | Hours & minutes, split-seconds chronograph, perpetual calendar functions |
| Power Reserve | Max 65 hours. |
| Water Resistance | 30 metres (3 ATM) |
| Strap | Composite material, fabric pattern, navy blue (originally fitted). Alligator leather with square scales, shiny dark blue (additional strap). White gold patented triple-blade fold-over clasp. |