Urwerk UR-103

About this reference

The Urwerk UR-103 in 18k white gold was produced during the mid-2000s, specifically following the series' debut in 2003, and is now discontinued. Collectors value this reference as the foundational model that established Urwerk’s signature wandering hour complication, featuring four orbiting satellite disks and a curved sapphire crystal that provides a panoramic view of the time. The manual-wind Caliber 3.03 movement includes a Control Board on the caseback with a power reserve indicator and a fine-tuning screw for rate adjustment. The white gold case measures approximately 50mm by 36mm and is noted for its Art Deco-inspired fluting. On the secondary market, this reference typically trades between $35,000 and $55,000 depending on condition and service history. A notable variant is the UR-103.03, which introduced a larger sapphire aperture and more technical aesthetic compared to the earlier, more enclosed "shield" designs.