1155. Urwerk A fne and attractive limited edition blackened titanium and stainless steel wristwatch with fyback minute hand, satellite complication, power reserve, winding efciency indication, certifcate and presentation box Urwerk， 「Black Hawk」型號UR-210，精細，限量版黑鈦和精鋼 自動上弦腕錶，配衛星時間顯示、動力儲存、飛返分針，限量發行75枚， 編號第22號，約2016年製。附錶盒、原裝證書 Manufacturer Year
Urwerk Circa 20176
Reference No. Case No. Model Name Material
UR-210 No. 22/75 Black Hawk Blackened titanium and stainless steel Calibre Automatic, UR-7.10, 51 jewels Bracelet/Strap Kevlar Clasp/Buckle Blackened titanium and stainless steel Urwerk deployant clasp Dimensions 43.8mm Width x 53.6mm Length Signed
Case, dial and movement signed
HKD 195,000-275,000 USD 25,000-35,300 Accessories Further delivered with Certifcate of Origin & International Guarantee dated 30 June 2017, invoice, setting tool, ftted presentation box and outer packaging.
In 2012 Urwerk launched the titanium UR-210 wristwatch with “Winding Efciency Indicator”, a technical advancement indicating the amount of power added to the mainspring as the rotor moved. Rather than measure mainspring torque, it measured over a two-hour period the consumed and generated energy of the mainspring so the indicator was in the green sector when active and in the red sector when sedentary.
By tracking this activity level, the winding rotor would either speed up or slow down insuring a constant level of power to the mainspring. The system could be manually adjusted via a switch on the case back so the efciency could either be increased (Full), decreased (Reduced) or rotor is disabled (Stop). Automatic winding systems can be weakened overtime due to excessive rotation or extreme forces the winding efciency system helps to mitigate these forces. The present model, UR-210 Black Hawk was released in 2014 and while similar to the original the watch is now with black DLC coated titanium.
Phillips presents THE HONG KONG WATCH AUCTION: EIGHT on 28 May 2019.