UR-100 Fireleg

Reference# UR-100 Fireleg
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  • Details
  • Description
  • Limited Edition: 25 pieces
  • Case: titanium and stainless steel treated with black PVD
  • Size: 41 x 49.7mm
  • Movement: caliber UR 12.01 Self-winding mechanical movement regulated by Planetary Turbine Automatic System
  • Function: measures the distance travelled on Earth’s equator in 20 minutes, and the distance Earth travels around the sun in 20 minutes
  • Power Reserve: approximately 48 hours
  • Water Resistance: 30 m
  • Dial: wandering hours, retrograde minutes
  • Caseback: sapphire crystal
  • Hands: hour and minute indications in Super-LumiNova
  • Strap/Bracelet: hand-stitched leather
  • Factory Warranty: two years

“We live in a universe governed by three dimensions—time, rotation, and orbit—that we attempt to measure and master, but what escapes us is this notion of SpaceTime”


“The UR-100 takes us on a journey through both time and space, merging two concepts at the very core of URWERK. The UR-100 SpaceTime features URWERK’s iconic satellite display, differing in one significant way. After minute pointers on the hour satellites disappear, they pass between subsidiary dials to display astronomical indications: distance travelled on Earth and distance travelled by Earth.”   Urwerk