![]() ![]() The C3 uses the natural light to recharge itself, just like the other lumes. The relative brightness of this lume stands at an astonishing 100%.Įmits a greenish glow when in the dark, this lume will provide you with enough visibility to see the clock’s hands. Hailed as one of the brightest lume compared to its other counterparts. ![]() This lume gives an extraordinary look to your watch when you are in the dark. The C3 is a lume that is used in most vintage-styled watches. They are more durable and less radioactive as compared to the previous lume watches. Today the watches come with many smart features and the latest lume technology, which provides extra light to make the dial readable in low light conditions. The early lume watches used the zinc sulfide but as time progressed the strontium oxide aluminate was developed, which had a 10 times stronger lume radiant technology. Lume watches started to surface in the watch market near World War 1. Today we are going to differentiate between the C3 and the BGW9 lume. There are quite different types of lume that have been used in different types of watches, for instance, C1, C5, and Old radium. The best part about lume is that is doesn’t need any battery or charging, it uses natural light sources to illuminate your watch dial. It provides an executive and cool look to the watch, however, the Swiss made lume watches are quite expensive because of the strict quality measures.īasically, this pigment absorbs the photon particles from a light source, such as Sun, and then remits that light to create a glow. Many high-end Japanese and Swiss brands have continuously used lume in their watches. The lume is widely used in watching making, it is applied to the dialers of the watch, to make them glow in the dark. Luminous phosphorescent also referred to as lume, is a pigment that generates phosphorescent glow. We are here to help you!Īt the end of this article, you will be able to answer all your queries regarding, what a lume is, how does it function, and what the difference is between the C3 and the BGW9 lume! Tritium, however, is significantly less radioactive than radium, meaning it was safe enough to be painted onto watch dials for decades, until the early 1990s when a couple of even safer alternatives - still used today - took its place.For all of you out there who don’t know what a lume is or how it works. Tritium operates under the same chemical principles as radium - the material undergoes decay, releasing electrons that trigger zinc sulfide to glow. Another radioactive material, tritium, arose as a successor. By the 1960s the amount of radium used in watch dials was approximately one-hundredth the amount used in the early 1900s in 1968 it was banned altogether. The usage of the material was then greatly scaled back. ![]() and further tightening of industrial safety regulations. The silver lining to all this was that litigation paved the way for increased legal protection of workers in the U.S. By 1927, dial painter Grace Fryer and a handful of other women - known as the “ Radium Girls” - sought compensation from the United States Radium Corporation, a major employer of dial painters in the U.S. But when workers began suffering from anemia, bone fractures, necrosis of the jaw, and eventually death, it became clear these women were misled. The material in question: radium, which, when mixed with zinc sulfide (a phosphor) produced a bright grow.Įmployers told the women there would be no ill effects from ingestion and exposure to the material, despite the fact that factory owners and scientists did take precaution when handling larger quantities of radium. Workers also began to paint their fingernails with the glowing material. The luminous material was painted on with a brush that was kept sharp by pointing the bristles with the tongue. The tech was cutting-edge at the time, and with the need for legible watch dials for soldiers during WWI, workers could take pride in helping the war effort. It was a glamorous gig that required artistry and skill. In the 1910s and ’20s, a working-class woman could make a decent living painting luminous material onto watch dials. ![]()
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