I do greatly admire the Speedmaster and think its meritorious styling is both iconic and enduring. I'm grateful and enthused to have one. It's one of the best looking Omegas, best looking chronographs and will be forever timeless,
if Omega doesn't monkey with its styling features ... but, it's not my favorite watch, or even favorite Omega. I sure do miss mine though, while it's away for an extended hospital stay after being foolishly dropped twice in quick succession.
It might be better for me to post examples of what I do like in a watch rather than many features or complications I find cluttering and detracting. Especially date or day/date features.
Simple mechanical movement designs and styling in any size from 33mm to 40mm make me really happy even though I have an 8-inch wrist. Other watches having date or even day/date features and even one quartz live here, but these below, as well as some more on hand similar to them, suit me best.
I love the 1950s Constellations in any no-date iteration best of all Omegas. I love winding watches best, but admire some vintage automatic movements, central second hand or sub-second hand. I love a full set of Arabic numeral markers.
I love solid gold watches, especially 18kt rose gold.
14kt yellow gold is quite nice too, especially if it also features a full set of Breguet style Arabic numeral markers.
I love watches that are survivors, yet still serviceable for the purpose for which they were designed.
Not a survivor, but I still keep it, unable to find a watchmaker willing to repair its cheap-o 7-jewel movement. Have liked sub-second dials ever since I got this first watch in about 1965, when i was in the third grade. Full set of Breguet numeral markers too!