Is the Gevril Excelsior a true Swiss automatic?

Yes. It uses a Swiss automatic movement, so it winds itself from wrist motion and has no battery. Expect a power reserve of roughly a day and a half, so it stops if left unworn for long.

It is rated 5 ATM (50m), which covers hand washing and rain but not swimming or diving. Take it off before showers, pools and the sea.

What size wrists does the 42mm case suit?

The 42mm case wears well on wrists from about 6.75 inches up. Below that it can look oversized for a dress watch, so try it on if you can.

Does it come with a steel bracelet?

The watch is supplied on a leather strap with a steel buckle. The 21mm lug width means you can fit other 21mm straps, but 20mm and 22mm straps will not sit flush.

How does it compare with a Tissot or Hamilton automatic?

It offers similar Swiss automatic internals and sapphire glass. The main differences are the 42mm case size, the 21mm strap width and the less established brand name, which affects resale more than daily use.