Blancpain No Radiation Fifty Fathoms Aqualung "No Radiation" MILITARY PROVENANCE (30446)

30446 Blancpain Fifty Fathoms Aqualung NO RADIATION, this model was made for civilian use without radium luminous on the markers, polished stainless steel two piece case is in excellent original condition, automatic signed Blancpain R310 movement, 17 jewels, original tritium dial is in excellent condition and is completely original and very glossy for its age, patina has aged very nicely and evenly over time, iconic "no radiation" symbol to let users know that non radioactive paint (tritium) was used to add luminosity to the dial, radium was frequently used on earlier Fifty Fathoms examples, "euro" handset, original bakelite bezel with minute hash marks is in excellent condition, original dust cover, size 41mm, SN 300xxx, circa 1965, Rare Example in Excellent Condition with European Watch Co 6 Month Warranty and Travel Pouch.


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More about Blancpain No Radiation Fifty Fathoms Aqualung "No Radiation" MILITARY PROVENANCE

This is a vintage c. 1965 stainless steel Blancpain Fifty Fathoms Aqualung NO RADIATION. It has a shell Cordovan leather strap with a steel tang buckle, an acrylic crystal, and a screwed-down solid case back and winding crown. The 41mm diameter case, reeded bi-directional rotating bezel, and downturned lugs are un-polished in excellent condition with the original sharp edges. The graduated black Bakelite bezel has Arabic numeral markers and hash marks for dive times. The dial is glossy black with Tritium-coated round, baton, and diamond hour markers. There is a center sweep second hand with an arrow tip, and an outer minute/second track. Radium was not used for luminescence on the civilian Fifty Fathoms, hence the No Radiation symbol is at the 6 o'clock position. It's water resistant to 1000 feet, and the 13.5mm thick case, dial, and movement are all signed.

In 1952, the French "Nageuers de combat" (combat swimmers) was formed as an elite team - the NAVY Seals of France. The Fifty Fathoms watch was designed for military use and low light military situations, especially diving. Blanpain used radioactive materials such as Promethium 147 to illuminate the watch dials. To separate the civilian watches from the military that were radioactive, Blancpain moved to using Tritium, marked with the triple triangle red and yellow radiation logo beginning in 1965.