11/28/2023 0 Comments Best luminous paint for watches![]() All it required was exposure to light first, then it would continue to glow once the light source was removed. LumiNova is based on the chemical compound strontium aluminate, which is non-radioactive and non-toxic. Unlike radioluminescence, photoluminescence does not require radioactive particles to emit a glow – instead, it uses light as an energy source. invented LumiNova paint, based on a photoluminescent material. In 1993, the Japanese company Nemoto & Co. Some notable examples include the vintage Rolex Explorer II 1655, vintage Rolex Sea-Dweller 16660, and vintage Omega Speedmaster ref. ![]() Swiss watches marked with “T SWISS T” or “T<25” on the dial denote the use of tritium lume. As such, watchmakers began using tritium-based self-luminous paint on watch dials from the late-1960s onwards. While tritium also emits radioactive particles (which are required to activate a phosphor to glow), it is drastically less radioactive and therefore less dangerous than radium. Some examples include the vintage Rolex GMT-Master 6542, vintage Explorer 6610, and vintage Panerai Radiomir (fun fact: the Radiomir name was patented by Panerai for a radium-based luminous paint in the 1930s). If you come across a vintage watch with an original lumed-dial made anywhere between the 1910s and the 1960s, it was likely painted with radium-based luminescence. Radium on watch dials was finally banned in 1968, and tritium took over. Radium was still being used to create watch lume after the revelation but in significantly smaller quantities. However, it wasn’t long before the toxic effects of radium – brought to light thanks in large part to the tragic stories of the Radium Girls in the 1920s and 1930s – became apparent. In the early 1900s, a self-luminous paint composed of a mixture of zinc sulfide (a phosphor) and radium (which emits radioactive particles) was frequently used on watch dials. Radioluminescence describes the light that occurs when a phosphor gets its energy from radioactive particles. If you’re interested in learning a bit of history about the evolution of watch lume, keep reading as we go through a brief overview.Ī phosphor is a substance that absorbs energy from another source and then emits that energy into visible light. That’s because like almost every other timepiece component, watch luminescence, better known as “lume” in watch circles, has also evolved over the last century or so. One of the several ways to determine an approximate era of when a watch was made is to see if it has any luminous material on the dial and if so, identify the type. While we later learned that early radium-based luminescence was highly toxic, watches that emitted their own light (and thus, could be read in the dark) were a magical proposition at the turn of the 20th Century. But by the early-1900s, watch dials could glow thanks to the invention of luminous paint. The minute repeater complication (which chimes the time on demand) was invented to solve that very problem. Check them outĪpril 2019 State of the Sub Discussion and SummaryĢ1-26 Mar 19 Baselworld 2019 Discussion MegathreadĤ Dec 18 - AMA with Arial Adams & Matt Smith-Johnson for a new LE watch collaboration with Laco.We take it for granted today, but checking the time in the dark on luxury watches wasn’t always possible. The TAG Heuer subreddit has been reactivated and is now live.Updates to the Buying Guide have begun as well! Please come and suggest watches within the specific budget and style ranges.Let's hear your thoughts on anything relating to this brand! Personal anecdotes, opinions, technical articles, and everything else are all accepted and encouraged. We are in the process of updating our Brand Guides.If you would like to submit a post that deals with fakes in some way, please modmail to discuss before posting. Replica/counterfeit watch posts and discussion are explicitly forbidden. Please read our community rules and FAQ before contributing! Welcome to /r/Watches, a community for watch & horology discussion.
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