Urwerk UR 103.08 Black Bird 103 BrandUrwerk Collection103 ModelUR 103.08 Black Bird ReferenceUR 103.08 Black Bird Country of originSwitzerland Type of watchMen's Case materialPlatinum Case diameter50 x 36 mm Case thickness13.50 mm Power reserve43 hours Limited to10 pieces Limited editionManual windingHoursMinutesWristwatch