I don't think the dial was replaced when you sent it in, but likely was before you owned it. It looks like an '80s service dial to me, with attractively discolored lume. The tells are the no-step, as previously mentioned, as well as the no-drop R at the end of Speedmaster. In 2000 you would have likely gotten a Superluminova dial if they had replaced it. Interestingly though, it appears that they fitted tritium hands when they did the replacement, as Superluminova hands wouldn't look like that now I don't think, so you may have lucked out a bit there.
The bezel is banged up, but being a Dot over 90, it probably has the greatest value on the watch. That condition would probably sell for $2500 or so for just the bezel, and maybe more.
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