Charging lume on a DJ41

[KatGirl]

Originally Posted by alcaliguri

Congratulations on your new Rolex Datejust 41! It's great to hear that you're enjoying it.

For the best and longest-lasting charge for the lume on your watch, sunlight is indeed the most effective method. Sunlight provides a strong and consistent source of UV light, which is what charges the luminescent material on the watch hands and indices.

A "full charge" for the lume can be achieved by exposing the watch to direct sunlight for a few hours. However, even a shorter exposure time will provide a significant boost to the brightness and duration of the lume.

Once fully charged, the lume should remain visible in low-light conditions for several hours, gradually fading over time. The exact duration can vary depending on factors such as the quality of the lume and how much charge it initially received.

And don't worry about the nostalgia of charging glow-in-the-dark toys – it's a fun connection to have with your watch's lume!

You don’t need hours of direct sunlight, in order to fully charge any kind of lume. A minute, or two, is plenty long enough. In practical use, you will want to charge it, before turning off the light, before going to bed. I use my iPhone’s light for one minute, and the lume is as bright as it will get. It will gradually fade throughout the night. Having said all of that, Rolex is not known for its lume. Seiko’s Lumibrite is about the best, in the industry.

Kat


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