Blancpain Fifty Fathoms Aqualung "No Radiation" SS Black Dial

The Blancpain Fifty Fathoms Aqualung “No Radiation” is a striking example of pioneering dive watch heritage, produced circa 1965. Crafted in polished stainless steel, its 37 mm case set an enduring standard for legibility and functionality while offering approximately 91 meters (50 fathoms) of water resistance—a practical benchmark of its era. Its glossy black dial features the iconic crossed-out radioactive emblem and “NO RADIATIONS” branding at 6 o’clock, signifying Blancpain’s progressive transition away from radium luminous and affirming its civilian safety. Behind its classic aesthetic runs the trusted Blancpain R310 (A. Schild AS 1700) automatic movement, known for its 17 jewels, 41‑hour power reserve, and antishock and antimagnetic features derived from robust military specifications. The substantial 12.8 mm thickness preserves the vintage profile, particularly when paired with a brown strap that complements its rich period character. This watch stands as a highly collectible piece for seasoned connoisseurs, emblematic of both Blancpain’s technical innovation and the broader evolution of diver safety. As part of the Fifty Fathoms lineage, the Aqualung “No Radiation” underscores Blancpain’s legacy in setting the benchmark for underwater instrument watches in the mid‑20th century. Excellent Condition with European Watch Company leather travel pouch.