Automatic movement concern

[jimmy156]

Afternoon all,

Looking for some advice from the watch experts here. I noticed the "scoring" shown below on my seiko 5 movement yesterday. Any thoughts as to what could be causing it and whether it will be a problem? Watch still seems to be keeping pretty good time.

IMG_3049rs by jimmyb156, on Flickr

These are only a little over £50 new, but i do become rather attached to things that i have had for a while and i would rather not replace it!

[DJMC]

You sure it's scoring and not oil/grease trails?

[CardShark]

^^ This

[Lorne]

As above, the oil is a bit dirty. It should always be crystal clear in a watch and only need a refresh every half dozen years because viscosity changes. This looks dirtier than the stuff in my car so I expect the bearings are wearing or the case is letting dust in.