Urban Jürgensen uj-3

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Manufacturer reference

UJ-3

Material

950 platinum or 5N rose gold

Diameter

39mm

Dikte

13.9mm

Bezel

Stepped, polished, satin-polished

Lugs

Reinterpreted Jürgensen teardrop design, stepped, polished

Bandaanzet

20mm

Glas

Domed sapphire with anti-reflective treatment

Case middle

Satin-polished

Crown

Non-screwed, fluted; UJ engraving

Case back

Hand guilloché circular Grain d’orge; sapphire crystal

Waterbestendigheid

3 ATM (30meters, ~100feet)

Indications

Offset central hours, minutes; calendar and small seconds at 5 o’clock; moon phase at 8 o’clock; offset date at 9 o’clock; offset month at 3 o’clock; fractional power reserve at 12 o’clock

Finishes

Hand guilloché in circular Grain d’orge for main dial periphery, in 45° Clous de Paris for date/small seconds auxiliary dial, in Sauté-piqué for minute track; applied surrounds in silver or 5N rose gold, satin-polished

Hands

Flame-blued Jürgensen

Caliber UJ-3

In-house, integrated perpetual calendar, 5N rose gold-plated, hand-wound

Height

8.1mm

Components

438

Regulator

Free spring balance with direct double wheel escapement

Calendar

Perpetual calendar with instantaneous jump mechanism at midnight, leap year indicator on the movement

Moon phase

Instantaneous jump mechanism at midnight, accurate to one day every 14,000 years

Lagerstenen

42

Gangreserve

52 hours

Frequency

18,000 vph (2.5 Hz)

Strap

Hand-stitched, ethically sourced alligator leather with soft calfskin lining

Buckle

950 platinum or 5N rose gold pin buckle

Checked 2026-09-29 · Regionaal bereik: manufacturer Europe · Fabrikantspecificaties; individuele horloges kunnen afwijken.