













895Σ︎
Urban Jürgensen
Reference 2 “Prototype”
A highly rare and only one made pink gold perpetual calendar prototype wristwatch with guilloché dial, moon phases and presentation box
Estimate
HK$500,000–1,000,000
€56,600–113,000
$64,100–128,000
Manufacturer
Urban Jürgensen
Year
Circa 1990s
Movement No
000’000
Case No
Proto, 4271
Model Name
Reference 2 “Prototype”
Material
18K pink gold
Calibre
Automatic, cal. FP71, jewelled
Bracelet/Strap
Crocodile
Clasp/Buckle
18K pink gold Urban Jürgensen pin buckle
Dimensions
38mm diameter
Signed
Case, dial, movement and buckle signed
Accessories
Accompanied by Urban Jürgensen instruction manual, fitted presentation box and outer packaging.
Full-Cataloguing
Good to know:
- Only prototype cased in pink gold
- Dial marked “PROTO”, with 000-000 marked on movement
Under the stewardship of Peter Baumberger and watchmaker Derek Pratt, Urban Jürgensen was revived amidst the Quartz Crisis in the 1980s. It was the time when watchmaking brands reaffirmed their relevance in mechanical watch manufacturing, and elaborated on ultra-thin movements and refined complications. Produced between 1986-1993, the Reference 2 produced in a total of 172 pieces across four metals: yellow, pink, white gold and platinum. It is highly sought-after by collectors for its distinctive Baumberger-Pratt era elements — a moderate yet elegant 38mm case with stepped bezel, graceful teardrop lugs, and engined turned clous de Paris and panier guilloché. The present watch is more than that, it is an exceptional prototype indicated by the “PROTO” inscription on the dial. According to scholarship, only two Reference 2 prototype are known: yellow gold (Sold by Phillips), and the present in pink gold.
Both watch are housed with an ultra-thin self-winding movement based on the Frédéric Piguet ébauche, topped with a perpetual calendar module developed by Pratt. While not fully decorated, both featured a gold rotor with industrial-looking circular Côtes de Genève. The bridges also featured Geneva striping but the edges of the bridges weren’t finished. The serial number 000-000 were engraved on the barrel bridge.
Not only a study of elegance, the present Reference 2 is an important relic of the revival of the historic brand, and a significant piece illustrating the mastery in watchmaking that stood as one of the icons of Baumberger-Pratt Urban Jürgensen. Offered in excellent condition and kept in a private collection for 18 years, it is a rare opportunity to acquire a timepiece of such historic importance.
- Only prototype cased in pink gold
- Dial marked “PROTO”, with 000-000 marked on movement
Under the stewardship of Peter Baumberger and watchmaker Derek Pratt, Urban Jürgensen was revived amidst the Quartz Crisis in the 1980s. It was the time when watchmaking brands reaffirmed their relevance in mechanical watch manufacturing, and elaborated on ultra-thin movements and refined complications. Produced between 1986-1993, the Reference 2 produced in a total of 172 pieces across four metals: yellow, pink, white gold and platinum. It is highly sought-after by collectors for its distinctive Baumberger-Pratt era elements — a moderate yet elegant 38mm case with stepped bezel, graceful teardrop lugs, and engined turned clous de Paris and panier guilloché. The present watch is more than that, it is an exceptional prototype indicated by the “PROTO” inscription on the dial. According to scholarship, only two Reference 2 prototype are known: yellow gold (Sold by Phillips), and the present in pink gold.
Both watch are housed with an ultra-thin self-winding movement based on the Frédéric Piguet ébauche, topped with a perpetual calendar module developed by Pratt. While not fully decorated, both featured a gold rotor with industrial-looking circular Côtes de Genève. The bridges also featured Geneva striping but the edges of the bridges weren’t finished. The serial number 000-000 were engraved on the barrel bridge.
Not only a study of elegance, the present Reference 2 is an important relic of the revival of the historic brand, and a significant piece illustrating the mastery in watchmaking that stood as one of the icons of Baumberger-Pratt Urban Jürgensen. Offered in excellent condition and kept in a private collection for 18 years, it is a rare opportunity to acquire a timepiece of such historic importance.