Freitag, 22. September 2023

Urban Jürgensen reference 3 yellow gold N°015-----> "Reference 3 Model" in the official UJS catalogue

 Dear watch aficionado.

A pretty awesome fact about this Urban Jürgensen reference 3 in yellow gold N°015 is, that it was used as the official "reference 3 Model" in the UJS catalogue as you can see on the following photos.




In the 1990s, when the reference 3 was presented, Urban Jürgensen was guided by Peter Baumberger and together with Derek Pratt they developed their collections. Derek Pratt was as well the one who developed the up/down mechanism on the reference 3, which took almost 2 years of research, different technical drawings and three dozens of additional parts to finally fit into the ultra thin (2.4mm) Frédérique Piguet base movement. The more, the whole modification for the perpetual calendar indication was as well developed and produced in-house at the atelier of Urban Jürgensen!

To finish the guilloché dial, it takes more than 700 operations and 2 days of work. The moon display requires over 20 operations to produce the blued steel background with inserted gold moon discs and stars that are punched in one by one. The effort required to produce the elegantly curved springs and levers of the perpetual calendar mechanism is partially unlimited. Each steel surface is carefully grained and the edges angled and polished to perfection. The tear drop lugs are individually forged and then soldered by hand to the case. 

The level of finissage on the Urban Jürgensen reference 3 timepieces is at the very highest standards of watchmaking.



Base Automatic caliber FP71, 18 000 vph

​In-house modified by Derek Pratt

Perpetual calendar mechanism

Power reserve indication mechanism developed by Derek Pratt

Guilloché-main 21kt gold rotor

40 jewels, 2.4mm high


18kt rose gold

38mm diameter

Each single lug forged and welded to the case

Solid caseback


Guilloché-main by Derek Pratt N°015



 Reference 3 Model in the official Urban Jürgensen catalogue

NOS, never been worn, full set




Kind regards.


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