Emmanuel, known as quattro on WatchProSite, provides an invaluable look into the exclusive Patek Philippe collection created to honor the 225th anniversary of Hausmann & Co. in Rome. His detailed post, rich with imagery, serves as a crucial reference for collectors interested in these rare timepieces. This article synthesizes community insights, offering a deeper appreciation for Patek Philippe's commitment to its historical partners and the artistry behind these limited editions.
In
2019, on the occasion of the 225th anniversary of
Hausmann & Co. (Roman watch and jewellery store and historical partner), as well as the opening of a new Boutique via dei Condotti, Patek Philippe created an exclusive collection of 5 timepieces, honouring its long-standing partner and the city of
Rome.
Because it was a 225th anniversary, these timepieces were limited in the following way, playing with the lexical construction of the number 225:
- Two: each of the two Rare Handcrafts is a piece unique
- Hundred: each of the two Calatravas is limited to 50 pcs
- Twenty-five: the World Time is limited to 25 pcs
Aesthetically, I'm not sure about the Calatravas with the single Roman twelve, nor about the red-purple World Time (a color considered distinctive of Rome), but I find the two Rare Handcrafts very beautiful.
Best to you all,
Emmanuel
A/ TWO RARE HANDCRAFT UNIQUE PIECES, ref. 5089 with caliber 240
1/ Ref. 5089G-081 (the âPiazza di Spagnaâ timepiece displaying the Church of âTrinitĂ dei Montiâ, surrounded by the azalea flowers adorning the famous steps during springtime)


2/ Ref. 5089G-082 (the Castel SantâAngelo timepiece, an iconic place in the history of Rome, enhancing one of the statues of the bridge in front of the castle, known as âAngel of the plagueâ)

credit: hausmann & co
B/ HUNDRED: TWO CALATRAVAS, ref. 5296 with cal. 324 S C, limited to 50 pcs each
1/ Ref. 5296G-017



credit: exitstoday_1348 on reddit (1-2), bonnano (3-4) & hausmann & co (5)
2/ Ref. 5296R-016

credit: hausmann & co (1 and 5) & annibali & co
C/ TWENTY-FIVE: WORLD TIME, ref. 5230R-013 with caliber 240 HU, limited to 25 pcs

credit: hausmann & co
D/ SOME HISTORICAL DOUBLE SIGNED EXAMPLES
1/ Ref. 2509
2/ Ref. 2484
3/ Ref. 530 in steel
4/ Ref. 2577
5/ Ref. 533 
credit: antiquorum (1), European watch company (2), Phillips (3-6)
E/ PRESS ARTICLES FROM 2019
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 5296 Ref. 5296
The Patek Philippe Calatrava reference 5296 is a notable example of a time-and-date Calatrava, distinguished by its classic round case and clean dial layout. It represents a contemporary interpretation of the Calatrava design principles, offering a balanced aesthetic suitable for daily wear while adhering to the brand's established design language. The reference is known for its versatility in material and dial configurations, providing options that cater to different preferences within the Calatrava collection.
This reference features a 38 mm case, available in 18k white gold, rose gold, or yellow gold, housing the automatic caliber 324 S C. The movement provides a power reserve of 45 hours. A sapphire crystal protects the dial, and the watch is water-resistant to 30 meters. The case is characterized by a smooth bezel, contributing to its understated profile.
First introduced in 2005, the 5296 appeals to collectors seeking a Patek Philippe dress watch with a date complication. Its production run has seen various dial iterations, including silver, black, and cream, some featuring sector dials that add a vintage-inspired touch. The reference continues the tradition of the Calatrava as a foundational model within the brand's offerings, emphasizing enduring design and mechanical precision.
Specifications
- Caliber
- 324 S C
- Case
- 18k White Gold, Rose Gold, or Yellow Gold
- Diameter
- 38 mm
- Dial
- Silver, Black, Cream
- Water Resist.
- 30m
- Crystal
- Sapphire
About the Patek Philippe Ref. 2509
The Patek Philippe Reference 2509 is a notable example of a time-only watch from the mid-20th century, characterized by its clean lines and classic proportions. This reference is recognized for its understated design, which emphasizes legibility and a refined aesthetic, positioning it as a quintessential dress watch within the brand's historical catalog. It represents a period where Patek Philippe focused on producing highly precise and elegantly simple timepieces, appealing to collectors who value traditional watchmaking without excessive complications.
Typically, the Reference 2509 features a case crafted from precious metals, often yellow gold, housing a manual-winding movement. The case diameter is generally around 35mm, a common size for men's dress watches of its era, providing a comfortable and discreet presence on the wrist. The watch is fitted with a sapphire crystal, protecting a dial that often presents with minimalist hour markers and hands, reflecting the design sensibilities of the time.
This reference appeals to collectors seeking a pure expression of Patek Philippe's design and mechanical prowess from the 1950s. Its enduring appeal lies in its versatility as a formal timepiece and its representation of a specific design philosophy. Variants of the 2509 may include different dial finishes or case materials, offering subtle distinctions for discerning collectors.
Specifications
- Caliber
- 27 SC
- Case
- Yellow gold
- Diameter
- 35mm
- Dial
- Silver
- Crystal
- Sapphire
About the Patek Philippe Ref. 2577
The Patek Philippe Reference 2577 is a vintage model, distinct for its classic design and representation of mid-20th century Patek Philippe aesthetics. It is a time-only watch, emphasizing clarity and traditional watchmaking principles. This reference is part of a period when Patek Philippe produced a variety of understated yet technically refined dress watches, appealing to collectors who value historical design and mechanical purity over overt complications.
This reference typically features a case crafted from precious metals, often yellow gold, with a modest diameter suitable for a dress watch of its era. It houses a manual-winding mechanical movement, characteristic of Patek Philippe's commitment to in-house calibers. The crystal would have been acrylic, common for watches of this period, offering durability and a warm visual quality to the dial.
For collectors, the Reference 2577 represents an accessible entry into vintage Patek Philippe, offering a blend of historical significance and enduring design. Its appeal lies in its simplicity and the quality of its execution, making it a desirable piece for those who appreciate the brand's heritage in classic watchmaking. Variants would primarily involve different dial finishes or case materials.
Specifications
- Caliber
- 10-200
- Case
- Yellow gold
- Diameter
- 33 mm
- Dial
- Silver
- Crystal
- Acrylic