{"id":1485,"date":"2023-10-15T09:41:11","date_gmt":"2023-10-15T09:41:11","guid":{"rendered":"https:\/\/newsreader.codesupply.co\/gear\/?p=1485"},"modified":"2025-07-10T13:07:16","modified_gmt":"2025-07-10T10:07:16","slug":"tech-thrills-immerse-in-the-future-with-vr-innovations","status":"publish","type":"post","link":"https:\/\/antiqtimes.com\/?p=1485","title":{"rendered":"What Is Lume in Watches? How Glow-in-the-Dark Timepieces Actually Work"},"content":{"rendered":"
\n

Have you ever noticed how some watches glow brightly in the dark? That glowing material is known as lume<\/strong>, and it\u2019s more than just a cool feature\u2014it\u2019s a vital component in diving, aviation, and tactical watches. But how does lume work? What types are used today? And why do some watches glow longer than others?<\/p>\n\n\n\n

This article breaks down the science and history behind lume technology<\/strong>, and how to choose a watch with the best night-time visibility.<\/p>\n\n\n\n

\n\n\n\n

What Is Lume?<\/h3>\n\n\n\n

Lume<\/strong> is short for luminescence<\/strong>, the ability of a material to emit light after being energized. In watches, lume is applied to the hands, hour markers, and sometimes the bezel, allowing users to read time in total darkness.<\/p>\n\n\n\n

\n\n\n\n

How Lume Works<\/h3>\n\n\n\n

Modern lume works in two main ways:<\/p>\n\n\n\n

    \n
  1. Photoluminescent (non-radioactive)<\/strong>\n
      \n
    • Charges from light (sunlight or artificial light)<\/li>\n\n\n\n
    • Glows for hours after exposure<\/li>\n\n\n\n
    • Common materials: Super-LumiNova<\/strong>, C3<\/strong>, BGW9<\/strong><\/li>\n<\/ul>\n<\/li>\n\n\n\n
    • Radioluminescent (radioactive)<\/strong>\n
        \n
      • Self-powered (does not need light to glow)<\/li>\n\n\n\n
      • Historically used radium<\/strong> (now banned)<\/li>\n\n\n\n
      • Modern versions use tritium gas tubes<\/strong> (safe and regulated)<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n\n\n\n
        \n\n\n\n

        Types of Lume and Their Brightness<\/h3>\n\n\n\n
        Type<\/th>Brightness<\/th>Duration<\/th>Safety<\/th><\/tr><\/thead>
        Super-LumiNova<\/td>\ud83c\udf1f\ud83c\udf1f\ud83c\udf1f\ud83c\udf1f<\/td>6\u201310 hours<\/td>Very Safe<\/td><\/tr>
        BGW9 (white-blue)<\/td>\ud83c\udf1f\ud83c\udf1f\ud83c\udf1f<\/td>5\u20138 hours<\/td>Very Safe<\/td><\/tr>
        Tritium Tubes<\/td>\ud83c\udf1f\ud83c\udf1f\ud83c\udf1f\ud83c\udf1f\ud83c\udf1f<\/td>10\u201325 years<\/td>Safe (regulated)<\/td><\/tr>
        Vintage Radium<\/td>\ud83c\udf1f\ud83c\udf1f\ud83c\udf1f\ud83c\udf1f\ud83c\udf1f<\/td>20+ years<\/td>Hazardous \u2622\ufe0f (now banned)<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n
        \n\n\n\n

        Which Watches Use High-Performance Lume?<\/h3>\n\n\n\n
          \n
        • Dive watches<\/strong> (e.g., Seiko Prospex, Citizen Promaster)<\/li>\n\n\n\n
        • Pilot watches<\/strong> (e.g., Laco, IWC)<\/li>\n\n\n\n
        • Tactical\/Military watches<\/strong> (e.g., Marathon, Luminox \u2013 uses tritium)<\/li>\n\n\n\n
        • Field watches<\/strong> (e.g., Hamilton Khaki Field)<\/li>\n<\/ul>\n\n\n\n
          \n\n\n\n

          Tips for Buyers<\/h3>\n\n\n\n
            \n
          • If you want maximum brightness after short light exposure: Super-LumiNova (C3)<\/strong> is best.<\/li>\n\n\n\n
          • For consistent glow without recharging: choose Tritium tube watches<\/strong>.<\/li>\n\n\n\n
          • White lume glows blue<\/strong>, green lume glows green\/yellow<\/strong> \u2014 both have pros and cons depending on contrast.<\/li>\n<\/ul>\n\n\n\n
            \n\n\n\n

            Did You Know?<\/h3>\n\n\n\n

            Early 20th-century watchmakers used radium paint<\/strong>, which caused serious health issues for workers. Today, all modern lume is safe<\/strong> and heavily regulated.<\/p>\n<\/div><\/div>","protected":false},"excerpt":{"rendered":"Dive into VR wonders, exploring realms where reality and imagination intertwine. Thrills await in the virtual universe.","protected":false},"author":1,"featured_media":2112,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"video","meta":{"csco_display_header_overlay":false,"csco_singular_sidebar":"","csco_page_header_type":"overlay","csco_page_load_nextpost":"","csco_post_video_location":[],"csco_post_video_location_hash":"","csco_post_video_url":"","csco_post_video_bg_start_time":0,"csco_post_video_bg_end_time":0,"footnotes":""},"categories":[2],"tags":[],"class_list":{"0":"post-1485","1":"post","2":"type-post","3":"status-publish","4":"format-video","5":"has-post-thumbnail","7":"category-analog-watches","8":"post_format-post-format-video","9":"cs-entry","10":"cs-video-wrap"},"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/antiqtimes.com\/index.php?rest_route=\/wp\/v2\/posts\/1485","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/antiqtimes.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/antiqtimes.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/antiqtimes.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/antiqtimes.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1485"}],"version-history":[{"count":1,"href":"https:\/\/antiqtimes.com\/index.php?rest_route=\/wp\/v2\/posts\/1485\/revisions"}],"predecessor-version":[{"id":2113,"href":"https:\/\/antiqtimes.com\/index.php?rest_route=\/wp\/v2\/posts\/1485\/revisions\/2113"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/antiqtimes.com\/index.php?rest_route=\/wp\/v2\/media\/2112"}],"wp:attachment":[{"href":"https:\/\/antiqtimes.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1485"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/antiqtimes.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1485"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/antiqtimes.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1485"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}