doubts with president bracelet 18038

[Rafabond]

A friend has this 18038 of 1979 that belonged to his father, the clock is no doubt authentic quexes, but my question is whether the president bracelet is authentic, what do you think?

I do not find engraved anywhere in the serial number of the bracelet, behind the closure I think there is only one number engraved and I think that under the head of the lady I would have to have a “G” engraved but it is not