![]() ![]() ![]() Characteristic for this era is the so-called ‘Pie-Pan’ dial that looks like an upside-down pie-pan (a concentric ring that slopes down from the flat centre). 1556 movement.The 18xx Day-Date was produced with a wide variety of dial colors and configurations. 1803A new era dawned for the Day-Date when the earliest references (65xx & 66xx) were replaced by the 18xx series in 1959, which contained the cal. Add to Favorites Sale Phinney Walker Seven Jewels Germany. Add to Favorites Glow In Dark Green Watch Luminous Strontium Paste Powder Set Hands Dials Lume (5.4k) 32.71. With exception of the most modern executions, the Day-Date comes exclusively in a 36mm case. Radium 226 clock dial display - Test sample for Geiger counter high activity - Radio isotope element collection (286) 64.33. And to top it off, it was only available in gold or platinum! Rolex also designed a new three-link bracelet, known as the ‘President,’ to pair with this special watch. Image Credit: Jafd88 via Creative Commons The most reliable way to know if a watch has radium (or other radioactive material) is through the use of a Geiger counter. These paints were used on the dials of clocks and watches to make them glow-in-the-dark. When radium was discovered in the early 1900s, people were fascinated by its mysterious glow and it was added to many everyday products, including paints. The Day-Date was the first waterproof self-winding chronometer certified wristwatch with a day and date function. Radium is one type of radioactive material that could be found in antiques. Rolex Day-DateIn 1956, Rolex introduced one the most iconic watches ever made: the Day-Date. ![]()
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