I've got a question for Hamilton and/or field watch aficionados: is it unusual to have the the lume on the hands last much longer than the lume on the dial?
Under UV, the dial plots light up:
But then, they immediately fade. The lume on the hands, however, stays bright for a very long time:
Is this typical? Are the hands likely redialed or replacements? Thanks for anyone who can shed some light on this.
I've got a question for Hamilton and/or field watch aficionados: is it unusual to have the the lume on the hands last much longer than the lume on the dial?
Under UV, the dial plots light up:
But then, they immediately fade. The lume on the hands, however, stays bright for a very long time:
Is this typical? Are the hands likely redialed or replacements? Thanks for anyone who can shed some light on this.
It seems to be an effect of the lume coating of the hands being thicker than that of the pips on the dial.
I found this to be particularly noticeable with my recently purchased vintage Caravelle.
The hands have a flatened tip where the lume is applied but the numerals are lightly painted over with a thin coating of lume. The numerals still light up, though dimly, but fade quickly. The hands stay lit around twenty times as long as the numerals.
Notice that the numerals from two to twelve have a warm toasty hue while the number 1 is black because the remaining lume flaked away.