Ugh- I've passed up so many Eidos pieces that I regret not getting. It's consistency bringing out stuff that I think is great- and... not costume-y. I think the last time you could build a total wardrobe out of a single brand was "back-in-the-day" Wings + Horns.
It's a tough one, or it was, to find. The Tom Ford was like $1500 USD, and anyone who made a shawl collar cardigan that looked even slightly similar or classic looking wanted like $300+ so I settled on the Club Monaco wool version a few years ago and it's still holding up. Surprisingly good quality.