You may have heard of the Tian Jin ST4, the Chinese clone of the Bulova accutron 214.
Let me introduce you to another Chinese tuning fork watch. This is a completely different design (single coil).
It does bear an uncanny resemblance to the Bulova Accutron 230x movement. Yes but it’s bigger. This Chinese watch is the same size as the ST4.
I found absolutely no info about it on the internets.
This one is mine and it’s mostly running. Needs more accurate phasing.