Limited edition of 300 pieces u boat watch chimera net black bronze limited edition 8098 like most u boat watches you will never fail to make a lasting impression with the chunky 46mm case of the u boat chimera net black bronze watch the case is constructed by a striking combination of pvd coated stainless steel and bronze for a strong and durable finish while the bezel and case back are locked together by external tubing to ensure total water resistance housed within the study case is a