ThomasM shares his enthusiastic impressions of the Patek Philippe reference 5575 World Time Moonphase from the 175th Anniversary Collection, following a mini-GTG with fellow Purist GLau. His post vividly captures the watch's aesthetic appeal and intricate details, offering a collector's perspective on this significant anniversary piece.
I was fortunate enough to spend some time recently with fellow Purist GLau in Beijing, who wore his beautiful Patek ref. 5575 World Time Moonphase to our mini-GTG.
Not having had the chance before to spend some quality time with the new reference, all I can say is, WOW!

The case is a thing of beauty - I have always held the classic Patek cases in the highest regard (though I personally feel the recent trend towards overly decorative flourishes on the case surfaces a bit too much for my taste...) and the case used here is just simply sublime - without question the true heir to the timeless elegance and subtle grace of Patek's storied past.
The understated small Patek Philippe logo;
The jaw dropping detail of the moon;
All in all just a stunning piece, the epitome of all that is great about Patek Philippe.
And if you look very carefully, at just the right angle and under just the right light...

Thanks, GLau, looking forward to our next GTG, perhaps with more local watch addicts...
Cheers,
TM
About the Patek Philippe Ref. 5130
The Patek Philippe Complications reference 5130, introduced in 2006, is a World Time watch that succeeded the popular reference 5110. This model maintained the distinctive World Time complication, allowing for simultaneous display of time in 24 different time zones. Its design evolved with a slightly larger case and updated dial aesthetics, distinguishing it from its predecessor while retaining the core functionality that defines Patek Philippe's travel timepieces. It was produced until 2017.
The watch features an 18k rose gold case measuring 39.5mm in diameter and 9.8mm in thickness, housing the self-winding Caliber 240 HU movement. This ultra-thin movement, visible through a sapphire crystal case back, provides a power reserve of 48 hours. The dial is silver or opaline with a guilloché center, protected by a sapphire crystal. Water resistance is rated at 30 meters.
Reference 5130 appeals to collectors seeking a sophisticated travel complication from Patek Philippe. Its larger case size compared to the 5110 offered a more contemporary presence on the wrist, while its classic World Time mechanism remained a hallmark of the brand's technical prowess. The model was available in various precious metals, with the rose gold variant offering a warm aesthetic.
Specifications
- Caliber
- Cal.240 HU
- Case
- 18k rose gold
- Diameter
- 39.5mm
- Dial
- Silver / opaline guilloché
- Water Resist.
- 30m
- Crystal
- Sapphire
About the Patek Philippe Calatrava Officer's Case Ref. 5575
The Patek Philippe Complications reference 5575 is a special world time model distinguished by its integrated moon phase display, a feature not commonly found on other World Time references from the brand. This particular reference was released as a limited edition to commemorate the 175th anniversary of Patek Philippe, making it a notable entry within the Complications collection and for collectors of anniversary pieces.
The watch features an 18k white gold case measuring 37.5 mm in diameter, characterized by its distinctive twisted lugs. It is powered by the automatic caliber 324 S C, which provides a power reserve of 45 hours. The dial is presented in ebony black, and the watch is fitted with a sapphire crystal. It offers a water resistance of 30 meters.
As an anniversary limited edition, the 5575 appeals to collectors interested in Patek Philippe's special releases and those seeking a World Time complication with the unique addition of a moon phase. Its specific design elements, such as the lugs and the dial configuration, set it apart within the broader Complications range.
Specifications
- Caliber
- 324 S C
- Case
- 18k White Gold
- Diameter
- 37.5 mm
- Dial
- Ebony Black
- Water Resist.
- 30m
- Crystal
- Sapphire
About the Patek Philippe Complications Ref. 175thcollection
The Patek Philippe 175th Anniversary Collection, launched in 2014, comprises a series of highly complex and limited-edition timepieces created to commemorate the manufacture's significant milestone. This collection showcases Patek Philippe's mastery across various horological disciplines, featuring a diverse array of complications and artistic crafts. Each model within the collection represents a distinct facet of the brand's heritage and technical prowess, designed for discerning collectors.
The collection includes models with a variety of precious metal cases, such as rose gold, white gold, and platinum, with dimensions and thicknesses varying significantly depending on the specific reference. Movements are exclusively mechanical, encompassing both manual-winding and automatic calibers, many of which are newly developed or highly modified for these special editions. Sapphire crystals are universally employed, and water resistance ratings vary by model, reflecting their specific design and intended function.
This anniversary collection appeals to collectors seeking exceptional examples of contemporary haute horlogerie and significant pieces within Patek Philippe's modern history. The limited production numbers and the complexity of the movements ensure their continued relevance in the secondary market. The collection includes a wide spectrum of complications, from world timers and chronographs to grand complications, offering a varied selection for different collecting interests.
Specifications
- Caliber
- Multiple calibers depending on specific model within the collection
- Case
- Precious metal
- Diameter
- Varies depending on specific model within the collection
- Dial
- Varies depending on specific model within the collection
- Water Resist.
- Varies depending on specific model within the collection
- Crystal
- Sapphire