That isn’t a pre 97 tritium SMP Foo. Those go a much darker beige colour on the plots. Judging by the minty green colour that is SL, there is a way to tell from the ft text too but don’t have the time find a link to demonstrate right now. You could easily change the dial and hands on that and not notice, not that you would need to. Interestingly the hands do look a little more faded so I guess it is possible the dial was already swapped for SL but not the hands.on balance I would say both are SL.
The SMP is one of the few watches where I think fading tritium makes it look worse! They go to fried egg plots with mismatched hands.
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