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BuckyBuckwild
路Hello, I keep reading that only tritium lume yellows substantially and also that tritium lume was no longer used after 1997 or 98. However, I recently received a Seamaster 2551.80 (36mm) with serial number starting "602XXXXX" which apparently dates it to 1999. The dial indicies have yellowed a fair bit. Is this SL lume that has yellowed or rather tritium? It does still light up for a short while after being exposed to a flashlight for a few seconds. Thanks very much!