IWC Ref. 1815 on the original mesh - one of those "typical 70s designs" that originated in the (late) 1960s. The model was introduced in 1968 at the Basel Watch Fair (and was called Ref 815 then), this one is quite a bit later (1976 or so by the case serial no.)
Very comfortable to wear, and no date to hassle me ;-)
Without a doubt, it’s a stunner even using an iPhone camera, but you really have to see it in your hand. A 2652 Constellation with a black hobnail dial.
My pretty nondescript Türler Slim Line De Ville, which houses a more interesting engine: the thinnest full-rotor automatic movement Omega ever produced (3mm).