Blancpain Fifty Fathoms No Radiation, excellent and unpolished case that shows light wear from use, original tritium dial is in excellent condition and is completely original and very glossy for its age, original bakelite bezel with minute hash marks is in excellent condition, the thin flat caseback and the serial starting by 300XXXX are a clear sign that the model has been design for a military purpose, the watch comes with a 6 pages Blancpain analysis report, no service history, perfect working conditions