Blancpain Fifty Fathoms No Rad Limited Edition 5008B-1130-B52A

About This Watch

The Blancpain Fifty Fathoms No Rad is a tribute to the rare 1960s "No Radiations" model, distinguished by a moisture indicator on the dial that changes color if water enters the case. This complication, while simple in concept, is highly practical for divers and directly references the original No Rad watches that bore the "No Radiations" text to indicate they used non-radioactive luminous material — a response to the health concerns surrounding radium used in earlier dive watches. The modern interpretation maintains the moisture indicator at 6 o'clock as a small disc that changes from blue to pink if humidity enters the case, providing early warning of a seal failure. The same caliber 1315 with 120-hour power reserve and silicon hairspring provides the mechanical foundation. The aesthetic is deliberately vintage-inspired with a slightly different typeface and marker style compared to the standard Automatique, appealing to collectors who appreciate historical references. Market prices have exceeded retail, reflecting the desirability of limited-production Fifty Fathoms variants among collectors who value the brand's deep dive watch heritage.