what is the model number for this pair of Rolex DateJust watches?

[caine]

http://www.flickr.com/photos/4734599...7625618370435/

does any bros out there knew the model numbers for this pair of DateJust watches?
Thanks.

disclaimer: picture is found in the internet.

[Darkangel]

This piece is 16233 (Men's) and 69173 (Ladies)

[caine]

thanks