I own a gold/black belt strap and gold Orans. I reach for those accessories the most with jeans and similar casual clothes. But my formal work wardrobe is basically black and navy, and I always find pairing gold with those colors makes the look more casual.
This is what I'm afraid of. I would love the Constance 24 for casual outfits (and if money was never an object). The problem is that even if I took the Constance 24 I would still "need" a dark mini K, K pochette, or C to fill the "formal" void. I emailed my SA to ask if the bag is actually in or just expected. I can only make it to the store on weekends, but I will see what she says.
What color is your C24 if I may ask?