Condition: This watch is in Mint Condition.* Has Box - Missing Original Papers. Urwerk UR-210Y "Black Hawk" wristwatch featuring the self-winding Calibre UR-7.10 movement with a 39-hour power reserve; black dial with hours minutes and markers painted in Super-LumiNova; satellite complication showing wandering hours with three-dimensional minutes hand; power reserve indicator at 1 oclock; winding efficiency indicator at 11 oclock; winding regulator on case back visible through a sapphire-crystal window; and 53.6mm x 43.8mm titanium and AlTiN-treated steel case on a Baltimora black technical fabric strap secured by the Urwerk buckle.Urwerk UR-210Y The Black Hawk features a satellite complication display with wandering hour and retrograde minute indicators. The watch is equipped with a winding efficiency indicator which is the world's first complication of its kind. This practical addition to the watch movement enables the wearer to see if the watch is running on stored energy or if the wearer's movement produces enough kinetic energy to wind the spring. In addition to the winding efficiency indicator located at 11 o'clock position there is also a traditional power reserve indicator placed at 1 o'clock.The winding efficiency indicator is pointing into either green or red zone depending on whether the watch is using more or less energy than what the wearer is generating. If the watch indicates an insufficient supply of energy the wearer can react by placing the winding efficiency selector on the back of the watch to FULL to signal the rotor to transform even the slightest movement into stored energy. On the other hand if the wearer is more active the winding efficiency selector should be positioned to REDUCED which triggers the rotor damping system. There is also the STOP mode in which the winding system is disabled and the watch runs on power reserve. Located in the heart of Beverly Hills, we are one of the largest dealers of pre-owned high end watches in the World. We own all our own inventory and are a one stop shop for watch enthusiasts. We built our business through word-of-mouth referrals, with clients looking for unique timepieces not easily found at primary retailers or secondary market sources. Our expertise and passion for watches, in parallel with our exclusive industry relationships, positions us as a major influencer of tastes, trends, and values in the watch boutique economy. We also serve as expert consultants for those requiring purchasing guidance as well as building and growing noteworthy watch collections.