Omega Planet Ocean - question

[Coneyhurst Blue]

Hi All,
Just a quick question if I may on the Omega Planet Ocean, on the back of the case is some writing.
Planet Ocean - Professional - Si14 - 600m/2000ft - Liquidmetal Technologies
My question is should this be black or have a black infill ?
The text is etched into the case but it looks like originally it was filled black which has now rubbed/washed off in places - is this right ?
Thanks

[PPPMAT]

Mine is black - it’s infilled but hasn’t worn off at all and mines 10 yrs old now

[crispian22]

Looks to be painted.

[Coneyhurst Blue]

Thanks everyone, I guess I shouldn’t be worried.
Cheers