Zenith are a cracker of a brand - check out their latest innovation with the Defy Lab piece and their silicone oscillator! It's an absolute marvel and one that will hopefully spread. Their El Primero movement has, over the years, been used by the likes of Rolex, and they've recently updated the movement to measure 1/10th of a second. But we're well into Rolex territory with that one, price wise.
Pretty grim residuals for much of their wares if buying retail. Part of LVMH, so in bed with Tag and Hublot etc.
Some lovely vintage Zenith pieces out there though, if you buy right and aren't buying a franken.