-Brand: Sinn -Model: U1 -Model Number: U1.SDR (1010.040) -Dial Color: Black -Material: U-Boat Steel × SS (PVD Coating + Tegiment Coating) -Movement: Automatic -Men's -Case Diameter: Approximately 44mm (excluding crown) -Water Resistance: 1000M Water Resistance -Functions: Unidirectional Bezel / Date Display -Maximum Wrist Circumference: Approximately 16.
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