Replacement band possible for ME3019?

Hi all!

Been wanting to replace my band as the links for my watch are no longer in stock. However, when i removed the bracelet, theres this one link that seems attached to the main body that prevents using any other band with the watch. Is this part removable or am i stuck with only being able to use this band with this model?

Any potential 3rd party pieces that may fit as it is currently too small for my wrist and i have no extra links?