I’ve got a Seiko 5 Automatic that I like but tend not to wear because it’s a bit heavy and slips around on my wrist. Shopping for a Citizen now.
And better yet than NATO and Zulu would be an Erika's Original:Get a better band.
NATO and Zulu pass-through style bands don't allow much slippage at all, and you can get leather versions (at least of the Zulu). I really hate when a watch rotates off the flat of my wrist...
It's the most comfortable watch strap I've ever worn, and once adjusted (one time only) virtually NO SLIPPAGE.
Getting the "Tighter—Looser" fixture (figure 3 HERE) the correct distance from the bottom spring bar (to suit your wrist) can be a PITA... but once you have it it's brilliant. It's not cheap (like so many of its inferior copies) but well worth it IMO.
I found these gems via posts from @Jnatcat, thank you yet again William!