Urwerk UR- 101 T-Rex WatchThe UR 101 T Rex, With Textured Skin, Scaly Armor Covering Its Bezel, Sides And Lugs Measures 41 Mm In Diameter And 11. 86 Mm Thick At Its Highest Point. Its Rounded Design, Provides The Perfect Base For This Guilloch Pattern. This Engraving First Appeared On The UR 105 T Rex, Followed By The UR 100 T Rex: "It's A Traditional Guilloched Dial Pattern", Says Martin Frei. "We Applied It To The Entire Surface Of Our Case, Right Up To The Edges. You Can