Spotted in a Shop Window: Elegant Little Black Dress with Retro Style

Spotted in a BCBGAXAZRIA shop window, this sheath with folded peplums is really quite stunning in its simplicity. My picture simply doesn't do it justice. This elegant snugly-fitted dress has a high waist, an inset belt, folded peplum in front and 2-piece diagonal peplum in back. Be sure to visit the BCBGAXAZRIA website here in order to view this beauty and all its retro details close-up.

Would you call it retro-50s or retro-40s style?