Pocket watches lovers, Need your assistance!

Can anyone who knows about Pocket watches, share me some knowledge about this Pocket watch ?

&

what would be its worth now ?

I bought this from my friend.

This looks to be key wound, so it's probably from at least the late 1800's. It has no special complications, which is where these get really valuable. I know nothing about the Courvoisier Brothers, but there is clearly a serial number.

I also don't know of what the case is made. Bone up on hallmarks and look for a marking around the case back.

Thank you for your assist, I will check it up

Here is a similar one, described as a ladies pocket watch, but the dial is near identical from what I can see.

PML0453: Courvoisier Freres 38mm 16J key wind ladies' pocket watch #46919, silver HC with full engine turning (pmtime.com)

Stroud_Green

Here is a similar one, described as a ladies pocket watch, but the dial is near identical from what I can see.

PML0453: Courvoisier Freres 38mm 16J key wind ladies' pocket watch #46919, silver HC with full engine turning (pmtime.com)

Thank you so much gentleman