Recently sent out emails to the two service centers here in the US for my glycine watch. The long island location no longer services glycine under warranty, the Utah location is not returning my emails. Expect warranty claims to be a pain in the US. This is in regards to my combat 7 purchased a few months ago on massdrop. Just beware.
ConceitedRGM in Lancaster PA is a legit repair center for Eta movements etc. and they make their own watche’s too. they are authorized for many big brands like SINN.