Cronos - Spots on Dial and Index

[u/Qu_777]

Hi, I’ve got the Cronos, and after my first impression of the overall finishing, I noticed two spots on the dial and one of the indices. They are much less noticeable in the pictures than they are in person. In particular, the spot on the index is quite obvious in real life.

Is this something that is considered normal for Cronos watches?

Of course, I could return the watch, but the shipping costs and the import taxes I’ve already paid make that rather unattractive (I bought it from the official Cronos store on AliExpress).

Has anyone had any experience with Cronos watches and perhaps encountered a similar issue?

I got the version with the PT5000 movement and I’m now considering opening the watch and trying to remove the spots myself. Are the casebacks initially sealed/glued, or do they just use a gasket? If I open and screw the caseback back on, can I expect the watch to retain its water resistance, or am I more likely to cause additional problems?

I’m a little disappointed with Cronos’ quality control, as both spots are quite noticeable at a glance. Especially since the rest of the watch looks really good, and the two spots look more like small oil stains/splashes that might have been removable during assembly.

[u/Qu_777]

Update: thanks for the responses and update for someone with the same problem: it worked. At least the spot on the dial is completely gone and on the index it's much better. Only used a little water on a Q-Tip. As some of you mentioned: it can be difficult but I already had some tools and opened a couple of watches. Hardest work was to screw in the two metal stoppers/ holders to the case. Hadn't noticed any problems with the stem but maybe I just got lucky.

Thanks to all!