It's tricky as there are a lot of very similar bracelets, but from those pictures I can tell that the clasp cover is a correct Certina DS part, but the rest are generic bracelet and end links. The fit looks great though.
I remember having seen the clasp cover before (it is different from the ones on my DS'), but cannot remember if it is a late version from a GF bracelet or from a different type all together.
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