Here are two 105.003’s. One was never touched by a watchmaker, and one was serviced by the Omega factory.
The one on the right was kept by its first owner until his death, when it was sold by the family. Comes with full papers and the original box.
The other was sent last year(!) To Omega and “serviced” by them.
I know which one I like best.
Note the left hand watch has a bright Superluminova dial and hand set, and a modern service bezel. It also has service pushers, and crown, all of which differ from the watch on the right which carries originals. Note the colour differences, especially on the body of the dial.