UR-100 Electrum

Reference: UR-100 Electrum
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Limited Edition: 25 pieces
Case: satin-brushed Electrum (18-karat 2N yellow gold)
Size: 49.7 x 41mm
Movement: automatic-winding manufacture caliber UR 12.01
Function: wandering hours, measures the distance traveled on Earth and by Earth
Power Reserve: approximately 48 hours
Water Resistance: 30m
Dial: openworked
Hands: luminous hands and markers
Caseback: sapphire crystal
Strap/Bracelet: hand-stitched leather
Factory Warranty: two years


Electrum is one of the original precious materials, regarded by the ancients as a veritable treasure. This gold and silver alloy was coveted among Ancient Greeks, Amerindian civilizations, and Ancient Egyptians. While the first coins were minted from this metal, the noble, flamboyant, luminous material gradually fell into oblivion... while awaiting a much-deserved new lease on life.

The UR-100 Electrum is the new edition of Urwerk’s 100 collection. This 25-piece edition has a case made of an organic gold and palladium alloy. In addition to its sunny yellow color, it features a structured, pleated, and undulating surface.

The rhythm and rhyme of time are played out in the center of this golden arena. In addition to the satellite-type hours and minutes display, the UR-100 Electrum provides a new item of information. Once the 60th minute has passed, the minutes hand vanishes and reappears as a kilometer counter illustrating the 555 kilometers traveled every 20 minutes by every inhabitant of the Earth. This, in fact, corresponds to the Earth’s average speed of rotation calculated at the Equator. Earth's revolution around the sun – corresponding to 35,740 kilometers per 20 minutes – is displayed exactly opposite.