Just because… the “Open Six”

by on Sep.29, 2013, under General

Close look onto the sandwich dial of a Vintage Panerai. The “Open Six” carries the DNA of the brand from the 1930s until today.

The milled numbers and markers of the sandwich dial construction aged different in many ways – some changed their colors in different intensity and got cracks in the luminous “Radiomir” substance during the past decades. The self-iluminating substance was patented by Guido Panerai in 1915, which enabled the use of instruments and watches made by Panerai even in complete darkness.

Different to the “Luminor” substance used in later produced watches and instruments, “Radiomir” does not react instantly under the impact of light anymore. To see how a “Luminor Panerai” dial glows under impact of intensive light, click here. Once the human eye has been in todal darkness for a couple of hours, the remaining glow of the “Radiomir” substance becomes visible. That said, the still existing radioactivity of the substance in the dial can be measured with a Geiger counter easily.

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