Is the Invicta Specialty 50090 good for everyday wear?

Yes. It is a simple quartz watch with a readable white dial and a 38mm case that fits most wrists. It is fine for work and casual days, but not for swimming or rough use.

Can I swim or shower with it?

It is listed as water resistant, but Invicta does not state a depth rating here. Treat it as splash-resistant and take it off before swimming or showering.

What size is the case?

The case is 38mm across and round. That is a mid-size case that reads slightly large on small wrists and modest on larger ones.

Does it need a battery?

Yes. It runs on a quartz movement, so it uses a battery rather than a winding mechanism. A jeweler can replace it when it runs down.

Is it a men's or women's watch?

Invicta lists it as unisex, though it is marketed as a women's watch. The 38mm case and white dial work for anyone who likes that size and look.

What comes in the box?

Expect the watch and its packaging. Invicta's budget models typically do not include extra straps or tools, so check the listing for the exact contents.