Urwerk Tarantula

About this reference

The Urwerk UR-103T Tarantula in 18k white gold was produced between approximately 2009 and 2010 as a technical evolution of the 103 series. Collectors prioritize this reference for its caliber UR 3.03, which features a redesigned satellite complication utilizing four orbiting hour discs mounted on a grade 2 titanium cross. The "T" designation signifies the open-worked carousel, allowing visibility of the orbital mechanism that was previously concealed in earlier 103 iterations. The 18k white gold case measures 50mm by 36mm and includes a control board on the caseback for fine-tuning the rate and monitoring the 43-hour power reserve. On the secondary market, this reference typically trades between $45,000 and $65,000 depending on condition and provenance. A notable production variant is the "Shining T," which utilized a high-polish finish on the case and internal components to contrast with the standard satin-finished white gold models.