I don't see anything wrong from the pictures, but $325
is well below the going rate. The second hand is moving based on different positions in different photos, so the claim that it is fully functional seems sound. Without movement photos, I suppose the Omega 1438 could have been swapped with the ETA 255.461 equivalent. That would reduce the "collectable" value, but, honestly, these 1990s quartz watches don't have much collectable value anyway. And it wouldn't affect the functionality/accuracy/etc. since the only differences between those movements are cosmetic. The one thing I'd note is that the bracelet only has a single removable full link and the two half-links. So it will be too small for wrists much larger than 6 inches in circumference. You can purchase additional links, though they're not cheap.
FWIW, the seller does have 100% positive feedback and accepts returns at their expense. Also, eBay is very buyer friendly in the case of disputes. If I were in the market, I wouldn't have a problem making the purchase.
Edited to add: If I did purchase it, first thing I'd do is open up the caseback to see if the movement was genuine Omega and make sure that there wasn't damage from, e.g., battery leakage.
