URWERK UR-111C Two-Tone Limited Edition

Independent Swiss watchmaker URWERK presents the UR-111C model in a striking Two-Tone (TT) black PVD and brushed steel, teardrop profile. It is the part of the “Special Projects” line – a deviation from the wandering hour indications for which URWERK has become well-known.

The UR-111C TT comes with three key advances for watchmaking. The first is a retrograde linear minute display in an end-mounted driver’s watch style. This is a spinoff of the mechanism invented for the UR-CC1. In this new watch, the numerals are set in a 30° diagonal slant for a better readability. This means that the rotating cylinder onto which the minute indicator is painted must rotate 300 degrees about its axis, during which a coiled spring is wound.

URWERK UR-111C Two-Tone Limited Edition

At the 60th minute, the spring is released, making the indicator jump a further 60 degrees and back to the start position. But it also makes the hour indicator to its left jump too. The result is a pleasing optical illusion of the cylinder rotating endlessly and seamlessly.

URWERK UR-111C Two-Tone Limited Edition

The second innovation is the seconds display. Openwork Arabic numerals are set onto two wheels, each graduated in ten second increments. Each wheel is made using a cutting edge process of lithography, electroplating and moulding devised precisely for the creation of very light and specific structures. Indeed, each wheel, complete with its six numerals, weighs just 0.025g – and that’s just as well, given the delicate dance that the two will now take part in.

URWERK UR-111C Two-Tone Limited Edition

Interlocking like the teeth on cogs, they show a smooth progression of passing seconds. But how is the wearer to see such small-scale elements? They move – at a distance of just one tenth of a millimetre – under what looks to be a kind of circular lens, but which is a cluster of optical fibres.

URWERK UR-111C Two-Tone Limited Edition

The third and, in many ways, most stimulating new concept that the UR-111C introduces is its fresh take on the crown, for winding and setting. Doing away with the conventional, side-mounted winder, URWERK’s new piece introduces a roller system, positioned right across the middle of the case top. Rolling will further charge the watch’s self-winding movement. When small lever to the right side of the case is released, the same roller can be used to set the time, with stop-seconds functionality.

URWERK UR-111C Two-Tone Limited Edition

Of course, arranging all these micro-mechanics to create the end form of the UR-111C watch has been no easy task. The transmission had to be reimagined to allow a horizontal movement to provide a vertical time read-out within the crystal glass-covered truncated cones to both sides of the linear display. Connecting a roller crown to the winding stem likewise took feats of engineering, minuscule in scale but no less striking in effect.

Technical details

Model: UR-111C TT

Limited edition of 25 pieces

Calibre: Self-winding calibre with stop seconds
Jewels: 37
Escapement: Swiss lever
Frequency: 4 Hz
Power reserve: 48 hours
Materials: Anodized aluminium cylinder; LIGA-processed nickel second wheels.
Surface finishes: Circular graining, sanding, Côtes de Genève, polished screw heads.

Jumping hours, retrograde linear minutes, digital minutes, digital seconds.

Dimensions: Width 42mm x length 46mm x thickness 15mm
Glass: Sapphire crystal with anti-reflective coating
Water resistance: Pressure tested to 3ATM / 100ft / 30m

CHF 130’000.00(Swiss francs / tax not included)