I'd say this is as classic as Saint Laurent can get under Hedi Slimane's direction. I dig the straightforwardness and timelessness of the clothes, plucked out of the sartorial space-time continuum and modernised via particular styling choices (plunging necklines and absent shirts under tuxedos – we called it). You can do a lot with a very basic wardrobe if you turn the creativity knob to a 100. Getting off work in a shirt-and-blazer combo? Undo the buttons and let your solar plexus do the talking.
And if you think people will give you strange looks, good. What's the point if you're not grabbing anyone's attention?