Hello to you, would like some help with this ..
The watch is completely original and in very good condition ..
But it is stamped with 10 in the case and 10 on one of the band horns.
Is it a military stamp ???
And what can it be worth ..
Mvh Ronnie

 

It’s very pretty but not military. The reason those numbers are stamped as far as I know is a technique to avoid case backs being mismatched in a batch of watches. This way they can easily be matched to the case they belong to. @Tire-comedon @François Pépin

 

You have a very nice 1937-40 Naiad water resistant sports watch CK2064, I believe, one of the very first water resistant models.
Calibre 23.4SC with beautiful hands and dial.

No, Syrte answered it perfectly above.

Whatever the market will bear!
I paid about $300 US for mine but I'd rather have yours!
Here's mine:




Welcome to the forum, Ronnie.
Beautiful watch!
And as Syrte says, Tire-comedon, omtom, francois pepin, Adam, and many others, are experts here and follow these.

 

All four of your band horns and your watch head look great!

 

Beautiful watch. Congrats.

Mine is from 1938 and says "hello"

 

Lovely Omegas....

 

Very, very nice Bubba!
Note that my watch and the OP's have the oversize caseback with the protruding lip, while yours has the flush caseback.
Hopefully, @Tire-comedon will visit with us because he has extensive knowledge and reference materials regarding these beauties.

 

Mmmmm... I think that the caseback is the same



Bad pic but enough

 

You are so right!
You were hiding it on me.