Panerai's iconic Radiomir 1936 model (on left) and a re-edition of the watch launched in 2006 (on right). The ability of the watch to glow in the darkest, murkiest underwater conditions was thanks to the application of a radium paste patented by Panerai.

Panerai's iconic Radiomir 1936 model (on left) and a re-edition of the watch launched in 2006 (on right). The ability of the watch to glow in the darkest, murkiest underwater conditions was thanks to the application of a radium paste patented by Panerai. The watch is considered the first professional military underwater watch in history.

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