Horological Atlas
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URWERK · External base, reworked by URWERK

Caliber UR-2.02

The calibre of the UR-102 Reloaded, the round watch that returns to the collection URWERK launched at Baselworld in 1997: there are no hands, only an hour numeral gliding along a semicircular track, so the hour itself tells the minutes by where it has reached. Self-winding, 4 Hz, 48 hours and 25 jewels, behind a Swiss lever escapement. URWERK has not published who makes its base.

Spec source ↗
Winding
Automatic
Power reserve
48 hours
Frequency
4 Hz · 28,800 vph
Jewels
25
Components
—
Diameter
—
Thickness
—
Escapement
Swiss lever
Finishing
Satin-brushed
Complications
Time only
Introduced
—
The beat
8 beats a second
28,800 beats an hour.

A standard modern beat rate, balancing precision against long-term wear.

Power reserve
48 hours
0 h120 h

Off the wrist overnight and through the next day, it keeps going. Longer than 32% of the calibres in the Atlas.

Beats inside · 2

Escapement
Swiss lever
Decoration & finishing
Satin-brushed
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