Hi I'm in need of some advice regrading the Tag Calibre 12 movement I know its based on a SW-300
My friend has got one and I spotted next to the hairspring SW-300 stamped on it but I'm sure Tag
Would remove all evidence of this or I'm wrong

If not I think he may of been sold a high end fake with the correct movement but could be wrong
Can somebody please enlighten me

Many Thanks