Yes, one of the arms is kind of blurry, I can see how it may be missed easily. Makes you wonder about the artist.
Nazi(-inspired) swastikas were (are?) somewhat popular in Japan, a lot of bands (from Dir en grey through punk bands to some pop acts; less than 3 yrs ago there was a K-pop band that used swastikas as part of their gimmick) were using swastikas or nazi armbands with them as part of their costumes; just on 10th of October a nazi themed bar opened in Osaka. They often treat it mostly as a part of military theme and/or decoration (the same as catholic crosses [there is at least 1 vampire film, where vampire is using crosses, where the cross becomes symbol of evil]). Since the dawn of Internet this behavior becomes more and more rare (especially with internationally popular acts), I can't imagine guitarist of Dir en grey appearing with a nazi armband nowadays without causing an outrage online.
BTW 卐 this was a swastika used by nazis and they never used this one 卍.