Question about newly purchased DJ

[rolex32000]

Hey guys, I'm Matt. New to the Rolex world. I've been doing research for quite sometime into various DateJust's & yesterday I purchased a pre-owned one from Sumpter's, in Charlotte, NC. It's a SS w/ 18k white gold fluted bezel, jubilee bracelet, w/ a tapestry stick dial. We had removed the band prior to purchased & noted it was a 16234 with an F serial number. Apparently this watch was made in 2003-2004 range. Jeweler was asking $3675, but I walked out the door for $2900 + tax. Looks to be in beautiful shape & seems extremely understated & classy. I did not have the caseback taken off, as everything else seemed status quo with the watch & I believe Sumpter's has been in business for quite sometime. In any event, I'm a bit concerned with the fact that I cannot locate the micro-etched crown on the lower half of the crystal. I've read around that this feature was instituted sometime in 2002, however I've also read notes that there may be some 2003 or 2004 watches that do not have this feature. I am not sure what to think. I have used a magnifying piece to try & locate, but without any success. Any thoughts? I doubt I was duped, but you never know. Thanks in advance.

- Matt