Patek Philippe’s New Duo of Perpetual Calendar Split-Second Chronographs – The 5204G & 5373P

Patek Philippe has released two brand-new variations of its perpetual calendar split-second chronographs, the 5204G and the 5373P.

One would be hard-pressed to find a watch that represents the Patek Philippe brand better than manual winding chronographs. Although other brands including A. Lange & Sohne, Vacheron Constantin, and many others may make their own version, there is no doubt Patek Philippe’s are the most iconic and the most recognizable.

The Patek Philippe 5204G

Starting first with the incredible Patek Philippe 5204G with a new olive green sunburst dial. The brand has been on a green kick of late releasing a number of models with green dials including the 5930P, 5270P and 5905/1A.

The watch is identical in proportions and layout to the 5204P which was originally launched in 2012 as the successor to the 5004. The 5004 was essentially a 3970 with an added split-second chronograph function which was so time-consuming and difficult to produce that Patek only made about 12 of these watches per year.

The reference was produced from 1996 until it was discontinued in 2011 having a production of 15 years and featuring a few different variations.

The 5204 represented a huge leap forward from the 5004 in many respects. Firstly, the case was increased from 36.7mm for the 5004 – which was appropriate for the time – to 40mm for the 5204.

Secondly, and most importantly, was the movement that went from a lemania base movement to a highly modified version of this movement built from scratch by Patek Philippe and now in-house.

The watch featured a number of new innovations and technical upgrades which were groundbreaking for Patek Philippe at the time of this watch’s launch especially considering the fact this movement features 496 components.

This new 5204G features the same case diameter at 40mm and thickness at 14.3mm. It also features the same complications including a split-second chronograph, perpetual calendar, instantaneous 30 minute chronograph counter and day/night indicator.

However, the watch now features a sunburst green dial with a black gradient effect at the dials edges. The watch also features an olive green strap with contrasting white stitching. It seems that green is the new blue for Patek Philippe. 

How this watch will age and be seen by the dedicated Patek Philippe collecting community remains to be seen, especially in this atypical green color which has taken over many of Patek’s most complicated watches. The price of this new Patek Philippe 5204G is available on request.

The Patek Philippe 5204G Specifications:

Case Diameter:	40mm
Case Thickness:	14.3mm
Case Metal:	Polished White Gold
Bracelet Metal:	Shiny Green Calfskin Strap With Contrasting White Stitching
Dial:	Olive green sunburst dial with black-gradient rim, white gold lume filled applied hour indices and hands
Movement:	Caliber CHR 29-535 PS Q ⇒ In-House Movement stamped with Patek Philippe’s Seal – 34 Jewels, 496 components
Power Reserve:	55-65 hours
Complications:	Hours, minutes, small seconds, split-seconds chronograph, instantaneous 30-minute counter, perpetual calendar – date, day, month, leap year – day/night, moon phase
Price:	On Request

The Patek Philippe 5373P

The second split-second chronograph released by Patek Philippe is the 5373P. This is an even more complicated watch than the 5204G given the fact it is a monopusher split second perpetual calendar chronograph.

Seemingly taking a page out of Rolex’s book, Patek Philippe also decided to release this watch for left-handed collectors given the fact the chronograph pushers are on the left side of the watch – a first for modern Patek Philippe chronographs.

The watch features a 38.3mm platinum case with a thickness of only 12.93mm with a stunning gray gradient sunburst dial with contrasting red chronograph seconds hands. These red racing accents can also be found on the stitching of the watch’s strap which is made of calfskin and has an embossed textile pattern.

This watch is groundbreaking for a few reasons. Firstly, it is the first left-handed monopusher split-second perpetual chronograph Patek Philippe has ever made. Second, the style of this watch is extremely atypical for this kind of watch.

Split second chronographs are much more classic complication and yet this watch has a very sporty design and aesthetic from its red racing accents right down to the watch’s strap. The 5373P mixes a casual aesthetic with a traditional complication in a way that blends together perfectly. 

The release of this new 5373 reference also signals the end and discontinuation of the 5372 reference which ran from 2017 to 2022. The price of this Patek Philippe 5373P is available upon request.

The Patek Philippe 5373P Specifications:

Case Diameter:	38.3mm
Case Thickness:	12.93mm
Case Metal:	Polished White Platinum
Bracelet Metal:	Black Calfskin Strap With Embossed Textile Pattern and Contrasting Red Stitching
Dial:	Charcoal gray with black-gradient rim
Movement:	CHR 27-525 PS Q ⇒ In-House Movement stamped with Patek Philippe’s Seal – 31 Jewels, 476 components
Power Reserve:	38-48 hours
Complications:	Hours, minutes, small seconds, split-seconds chronograph, instantaneous 60-minute counter, perpetual calendar – date, day, month, leap year – day/night, moon phase
Price:	On Request

See the complete list of watches released by Patek Philippe in 2022 or read up on each in-depth:

Nautilus 5811/1G
Nautilus 5712/1R
Nautilus Joaillerie 7118/1300R
Nautilus 5990/1A
Patek Philippe 5935A
Aquanaut Luce 7968/300R