Unveiled in 2013, the URWERK EMC wrist watch features the world’s first mechanical movement with electronic monitoring system. Entirely conceived, developed and created by URWERK, EMC – for Electro Mechanical Control – is the world’s first 100% mechanical, high precision watch enabling its owner to monitor the movement’s timing rate.

In addition to EMC’s conventional indications – hours, minutes, seconds and power reserve indicator – is added a completely original performance indicator display, delta/δ, which is activated on demand by a push of a button. This patented, ultra-high precision, performance indicator, is a world first. And the wearer can then easily adjust the movement’s precision (rate) by simply turning a screw on the back.

Now URWERK unveils the EMC Black. In this timepiece, EMC’s gloriously deconstructed ‘instrument panel’ dial consists of discrete, circular and crescent-shaped subdials contrasting superbly against the sleek, black DLC-treated titanium and steel case.

EMC features a deconstructed dial with four separate indications: A clockwise tour of the displays, from top left, presents the: on demand, precision indicator (instantaneous rate delta “δ”) ranging from -20 to + 20 seconds per day; seconds dial with counter-balanced seconds hand; hours and minutes; and 80-hour power reserve indicator. Turning EMC over reveals the fully in-house movement with the integrated circuit board – the EMC ‘brain’ – the top of one of the two mainspring barrels near the crown and the top of the balance wheel and optical sensor on the winding handle side.

EMC is inherently a precision mechanical watch with an in-house movement conceived, developed and crafted in the URWERK ateliers in Zurich and calibrated by URWERK in Geneva. The movement meets the most stringent quality control, with its chronometric performance tested in five positions during a 30-day cycle to ensure that it meets the highest standards for a precision watch.

Technical details
Black DLC treated titanium and steel
Dimensions: 43mm width, 51mm length, 15.8mm height
Crystal: Sapphire crystal
Water resistance: Pressure tested to 30m / 3ATM
Finishing: Shot-blasting

UR-EMC calibre conceived, developed and manufactured by URWERK
Escapement: Swiss lever escapement
Balance wheel: ARCAP P40, linear balance coupled to the optical sensor
Frequency: 28,800 vph – 4Hz
Balance spring: Flat
Energy source: Vertically mounted double mainspring barrels, connected in series
Power reserve: 80 hours
Winding: Manual winding
Finishing: Côtes de Genève, snailing, micro-bead blasting, polished bevels on screw heads

Artificial intelligence
Generator: Maxon® generator with manual winding charging super capacitor
EMC system: Optical sensor controlled by an integrated circuit board;  16’000’000 Hz reference oscillator

Hours, minutes, seconds; precision delta, power reserve
Timing adjustment screw

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