I had this one, 79090 came on a Rolex oyster bracelet (which the rattly end links drove me crazy enough to sell up!). It has a service dial which came on the last of the 79090 models and has the white gold surrounds and gloss finish. I much prefer this non-original dial to the on with no surrounds although I have not seen another like it for sale since...
Also has the lovely plexi with cyclops...
Can be had for around the £1500-£2000 mark depending on bracelet, box, papers etc...
A couple of gratuitous shots...