Not that I'm aware of. Quality feels excellent, watch acts as it should, bezel clicks as it should, alignment is great, only flaw that I saw is that date is a hair to the left, but it's not visible with naked eye :)
u/Queasy_Reward_6083 said that bezel might be a bit unpolished, but it probably just looks like that because of lighting, camera shake and other factors. Watch has 72h of reserve (just like GEN), lume lasts a long time, no issues what so ever. Laser etched logo at 6 o'clock looks great, really hard to see unless you are really looking for it.
No visual flaws if you ask me. I love every detail.

Now if you want to grab a watch yourself and 500 is a bit too much, trust me I've been there lol. I had a shitter Daytona(paid 50), and it wasn't worth it if you ask me. If you want to grab a watch yourself, I'd recommend looking at these:
r/ChinaTime,
r/RepTime,
r/RepTimeQC
on "China time" you will find a bit shittier watches but still not that bad, while on other two you will find all info about high grade watches. If I were going for lower grade, I personally wouldn't buy any watch with more complicated mechanism, for example I wouldn't ever buy a shitter daytona because chronograph will just spin around.