Authentic Omega Bracelet 1610/930 Half Link?

Hallo,

i have purchased a Halflink for my 2254 Seamaster bracelet on Ebay.
It was sold as an "Authentic Omega". It does look fine, just slightly used.
I compared it to my halflink that ive got with the watch, and noticed one tiny difference on the backside.
The "arrow" on the link from Ebay seems to be engraved (deep imprint), and the "arrow" on my original link seems to be lasered.
Its not a big deal, but was wondering if Omega produced those in two different executions, or if it is an aftermarket/fake?

The one on the Left is the Original 1610/930 Half link, the one on the Right is the one from Ebay.

Thanks!

Anyone experienced such a deep imprint on a modern speedy or 2254 bracelet?
If it is a fake, i would at least want to comunicate this to the seller, for misinformation.
Thanks!