The guts are pretty popular for this watch. Several nixie watches use this same circuitry with z5900m tubes (the same pictured in this watch). I own one of these types of watches and have some pictures of the inside. No name or markings on the pcb, but I suspect they originate from eastern Europe (likely russia). Several nixie watches on ebay contain these very guts:
https://rover.ebay.com/rover/0/0/0?mpre=https%3A%2F%2Fwww.ebay.com%2Fulk%2Fitm%2F143080944522 -- You received this message because you are subscribed to the Google Groups "neonixie-l" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send an email to [email protected]. To view this discussion on the web, visit https://groups.google.com/d/msgid/neonixie-l/18354e5b-b9dd-45f8-8aff-e92cc21873e1%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
