UR-101 Green Mamba

• Limited Edition: 50 pieces
• Case: Materials Case and caseback in black PVD-coated steel
• Size: w 41 mm x 10.3 thick
• Movement: Self-winding UR 1.01V movement
• Power Reserve: 48 hr
• Water Resistance: 30 m
• Dial: Wandering hours on two satellites, minutes Hours and minutes markers painted with Super-LumiNova®
• Caseback: black PVD-coated steel
• Strap/Bracelet: Black rubber with black calfskin lining. Black DLC-coated steel pin buckle

The UR-101 Green Mamba by URWERK: Time lying in wait. Deep black and vivid green give one of URWERK’s founding models a striking new presence. The black case absorbs light while the green display emerges from the shadows, creating the stark contrast that inspires the watch’s name.

Unveiled at Baselworld in 1997, the UR-101 established the principles that would define URWERK: unconventional architecture, a distinctive way of reading time and mechanical watchmaking as a visual language. Nearly 30 years later, its outline remains original, with this new version reducing the case to a protective shell around a vivid, sharply defined display.

For co-founder and master watchmaker Felix Baumgartner, the Green Mamba returns to the instinctive ambition of displaying time differently: black allows the case to recede, while green reveals the essential information and gives the watch its identity. Co-founder and artistic director Martin Frei describes a display that springs into view in techno-green, evoking spaceship control panels and the luminescent eyes of a jungle mamba.

The wandering hour-marker travels along an emerald-green circular segment within an asymmetrical case coated in Panter Black, a nod to the Millennium Falcon from Star Wars. Echoing the Renaissance astronomical instruments that helped shape new ways of telling time, the UR-101 Green Mamba is limited to 50 pieces and continues the story of one of URWERK’s purest expressions.