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28 August 2022, 09:56 PM | #31 |
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hands and dial lume should be dead on uv with a 70s gmt me thinks. you need to post macros of the lume.
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28 August 2022, 11:59 PM | #32 | |
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Still struggling to find ways to do Macro pictures. |
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29 August 2022, 11:09 PM | #33 |
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Based on those photos, that's not a UV reaction I'd want/expect to see on original Rolex tritium on an early '70s dial. The mismatch tells you the hands are definitely relumed (green), and the dial lume should emit a white-ish hue.
Here's my 3.7 million 5512 under UV. There are some subtle variations of UV reaction, but this, in general, is what you want to see on original '70s tritium (except Daytonas), especially the uniformity. |
29 August 2022, 11:47 PM | #34 |
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The 24-hour hand may be original. :-)
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30 August 2022, 02:18 AM | #35 |
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The hour minute and seconds hand have been relumed. The 24-hour hand appears to be original.
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30 August 2022, 09:50 AM | #36 |
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30 August 2022, 09:55 AM | #37 |
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Although the picture cannot shows clearly, there are some tiny little dot on the dial's lume which still glow in green. What does that means?
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30 August 2022, 09:59 AM | #38 |
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Probably bits of lume that flaked off from the hands.
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30 August 2022, 10:15 AM | #39 |
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31 August 2022, 01:16 AM | #40 |
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31 August 2022, 04:32 AM | #41 |
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So the hands are definitely relumed a d that's why it glows in green, but what had likely been done to the dial making the lume does not react to the UV light at all?
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31 August 2022, 04:44 AM | #42 |
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That's normal for the 70s IMO. Same with the 24-hour hand.
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31 August 2022, 10:34 AM | #43 |
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Do you mean it is normal to have no reaction to UV light for 70s Rolex?
If yes, I tend to agree. (Although I do not have the expertise to challenge other experts opinion) Logically thinking, if someone would like to color this watch from a color which does not beong to this watch, I suppose both the dial and hands should be applied the same "treatment". Now It looks more to me that the hour and min hands were recoloured to match the rest of the watch only. As to whether there were other thing done to the dial lume making it not reactive to UV light, I really don't know. That's why I asked that question earlier. If the dial were also relumed, that means someone relumed the dial first, then another one think the hands do not match and relume again. But they did it in different time and apply different material and that explains why only the hands glow. But this assumption sounds less reasonable to me It is kind of fun to play like a detective to understand this watch. |
31 August 2022, 11:27 PM | #44 | |
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Here's another UV shot of one of my (former) DRSDs, from about 1974 (4.1 million). This is the reaction you want to see from original tritium under UV. Looks white, uniform and then is dead when you remove the UV. |
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31 August 2022, 11:49 PM | #45 | |
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I tried to follow the same way you take those picture and I found the dial could look slightly different and whiter than the first batch of pictures I took through the loupe. Does that look closer to what I should expect? I think my UV light is much weaker than yours. Here are some pictures https://im.ge/i/OEcWJF https://im.ge/i/OEcRE6 https://im.ge/i/OEcgMS Thanks |
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