hmmm I may be the minority here...
I don't find silver to be a night time only color. I see silver as a neutral. Think of how silver shoes/heels match every and any color dress. Silver also complement colors that other colors just can't do. for example, I find that if I wear purple clothes or yellow clothes, it would be "too much" to wear a bright red bag or orange bag or bright blue bag, however, silver would complement it very well in small dose as long as it's not "reflective aluminum foil silver" (so to me, in a way it works like a black or white bag).
I would wear silver shoes with my jeans and t-shirt for example. I find silver to be the perfect color to use as a neutral as an accessory to an outfit but give it a less boring pop compared to black - and that means silver jewelry, shoes,
and handbags included (when done in a nice not too flashy eye-blinding way - and I don't think this bag you show on picture is eye-blindingly blingy).
Since you're also thinking about a size that is not large (old medium), I personally find it perfect for day time use when you keep the outfit simple. I mean, I wouldn't wear it with a bright outfit with fuchsia pink shirt and neon yellow pants
but I don't find it loud when coupled with a regular sweater/t-shirt with nice design and white pants/jeans. in fact, I think a simple day time dress can really be "leveled up" with this bag and simple jewelry.
Just want to share my 2 cents on the color itself for your consideration of versatility and "day time" use. Of course that all depends on whether or not you're a color person or shy away from bright colors in general, it's all personal preference after all and there are plenty who love only black bags!
The color looks durable instead of a "metallic coat" which would be the general concern -which this does not look like it is at all -and that's a great thing combined with the caviar and ruthenium hardware.
Good luck with your decision, I have a dark silver caviar jumbo and it goes with all my casual outfits and not too loud at all (my bright blue and red bags are way louder).
if you have doubt, don't get it. Just wait for the right one 
