Limited edition of 300 pieces u boat u boat watch chimera day date giglio bronzo limited edition 8100 u boat have decided to pay tribute to their homeland by revealing the very first u boat watch to give both the date and day of the week this u boat chimera day date giglio bronzo limited edition is a striking timepiece carefully crafted from bronze that naturally ages with wear while the bezel and case back are locked together by external tubing to ensure total water resistance housed within