Welcome @melimeli
A nice thought to buy a watch for your boyfriend.
A bit of friendly advice if I may.
A bit of an introduction would help and why this particular watch.
You’ve chosen an unusual watch, so I hope you’ve got some time before the day of the birthday.
Also, these coloured watch dial finishes often crack - euphemistically called spider web by unscrupulous dealers to make them sound special - but it is in fact just a defect.