Milanese loop

Have you tried the following URL, presumably there is something similar in your country.

https://www.apple.com/shop/studio

In my opinion they would look terrible together, the Milanese band looks more yellow gold while the aluminum watch is more towards a muted rose gold. Get the Stainless Steel watch if you want them to match.

all watches that are 38 and 40 share bands across all apple watches ever made

all watches that are 42 and 44 share bands across all apple watches ever made