Urwerk UR-105 CT Kryptonite

Urwerk UR-105 CT Kryptonite 4

Coming from Swiss watchmaker Urwerk is another unconventional timepiece – the UR-105 CT Kryptonite. Interestingly, the inspiration for this unusual piece came from a traditional source: the 17th century night clocks made by the Campani brothers. According to one legend, the Pope ordered a special clock from them, requesting it to be able to tell the time in the dark. The clock also had to be silent and the time had to be immediately visible. The Campani brothers made a clock in which the hands were replaced by hour numerals that successively traversed a scale of 60 minutes. The clock was illuminated from within by a candle. Although being practical, the concept didn’t catch on since many such clocks, made mostly of wood, easily caught fire.

Urwerk UR-105 CT Kryptonite 5

The watch takes its inspiration from the 17th century night clocks made by the Campani brothers


Inspired by these historic night clocks, Urwerk’s founders Martin Frei and Felix Baumgartner created the UR-105 CT Kryptonite, their most illuminated watch yet. The word “Kryptonite” refers to the intense green light emitted from the hour and minute markers. According to Mr. Frei, the green is a perfect color match for this model. The contrast between the matt black case and the vivid phosphorescence of the numerals is just mesmerizing. The lume is in fact so strong that on full charge it can easily be used as a flashlight in a dark room! A cool and practical feature for sure :) . In addition to hours and minutes, lume is also applied on the power reserve indicator and digital seconds display. Both indicators emit a smooth blue glow.

Urwerk UR-105 CT Kryptonite 3

The contrast between the matt black case and the vivid lume is just mesmerizing


The new UR-105 CT Kryptonite is housed in a reasonably sized (at least for an Urwerk watch :) ) 39.5mm x 53mm titanium case. Featuring black AlTiN coating, the watch is water resistant to 30 meters. The case itself has a unique design, an octagon with deep grooves along its length. The inspiration for such design came from iconic buildings such as the Chrysler and Empire State building. On the back of the watch there are two pneumatic turbines for controlling the automatic winding efficiency. The user can adjust the turbines with a lever: the FULL position means that the slightest wrist movement will cause the rotor to spin while the STOP position stops the self-winding system, the winding is then possible only via the crown at 12 o’clock. The RED (intermediate) position causes the turbines to dampen the winding rotor, avoiding overstressing of the mainspring.

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The Art Deco influences are apparent in the design of the case


By sliding the button on the top of the case, the wearer can open the hinged cover to admire the watch’s movement and Urwerk’s ingenious satellite wandering-hours indication. The latter is based on a newly-designed openwork carousel which carries the four satellites, each bearing three numerals for the hours. The hours move along the minutes scale for an analogue and digital display of the time. The UR-105 CT Kryptonite is powered by the calibre UR 5.03 which oscillates at a frequency of 28,800 vibrations per hour and offers a power reserve of approximately 48 hours. Priced at CHF 65,000 (excluding taxes), the watch is delivered on a black textile strap.


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