Historical pieces

UR-103

“URWERK's UR-103 is the result of nearly three years of development and a further two more years of testing... the end result went beyond our dreams.”

Felix Baumgartner

About

The UR-103

With the UR-103 models, URWERK takes its 'no limits' approach to haute horlogerie ever further. Four orbiting and rotating satellites display the hours, with each satellite indicating the time in a both analogue and digital fashion as it arcs across the minute chapter. This sophisticated and ground-breaking complication is the result of years of research, development and testing.

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Insights

Orbital cross and satellites

The orbital cross carries the four hour-satellites and an internal Geneva cross governs each of them. The hour-satellites complete a full revolution under the orbital cross every four hours.

Hour satellite

The time is indicated by an orbiting hour satellite passing the arc of the minutes.

Plate

The complication is mounted on a non-magnetic ARCAP P40 triple base plate providing superior strength and stability to traditional metals.

Control board – world first

The control board on the back of the UR-103 was inspired by vintage marine chronometers which placed their less frequently used functional indications on the back of the timepiece.

Power Reserve indicator

36-43h power reserve.

Chrono Meter for precise time setting

Chrono Meter with dual 15 minute and seconds dial facilitating accurate time-setting.

Fine Tuning screw

In a nod to Abraham-Louis Breguet, a Precision Adjustment screw allows the user the possibility of adjusting the watch's timing (about +/- 30 seconds per day).

Specifications

Case

Dimensions

50mm x 36mm x 13.5mm (including lugs)
Movement

Calibre

Caliber 3.03, manual wind, 43-hour power reserve, 21,600bph/3Hz. Unique triple base plate in ARCAP P40 black PVD coated. Hour satellites in aluminium, orbital cross in grade 2 titanium.
Indications

Control Board

Power reserve indicator, 15 minute and seconds dials for precise Time setting, user adjustable fine-tuning screw.