I am selling my extremely rare DOXA SUB300 Professsional Black Lung, this is an "internal Use" version that was made for Aqua Lung employees. Very few of these were made, hardly ever seen in the wild! Has been worn, has some scratches that can be polished out. Comes with complete box and papers, including DOXA 50th Anniversary book that was shipped with the watch. Price is firm at $2650.00.