Mercury
mercury
is known under the name "Ticwatch 2 international", "Ticwatch 2i" or "Ticwatch 2 i18n" and uses the MediaTek MT2601 SoC.
Misc Hardware Info
The metal part of the watch where “Model: WE12016” is engraved is a sticker with a metal look and can be removed. Once the sticker is removed, the watch exposes 6 pads, with 5 of them connected internally. The current working theory is that the pads are USB.