Hello! New player here!

Is there bychance a weapon exhange box being rewarded from season (not tuvala) when it is done or you graduate?

Last season I had gotten one (and used for similar reasons as now, bummer) but cant really place my finger on where exactly it came from.

I really want to pick the +140 failstack from the spring seal exchange, but also need the exchange box to swap gear from my old main to the to-be new main.

Also, am I better off to not worry about the exchange box and just tag copy the weapons from my old main until eventually we get exchange coupons? Enchanting copied gear seem to work too contra the old guides on the matter so it would essentially not lock me down at all.

Is there something im missing in the tag copy method that would complicate things?

You get a free weapon exchange box for tuvala weapons when you use the timepiece. I assume thats where you got yours from.

I figured out last night it was from a coupon code. 

Also apparently you can pick both the +140 stack and the exchange box from the spring seals reward. At least I accepted the quests for both. But sadly normal pass does not reward enough seals.