is this watch the 2500 or 8500 movement?

http://www.ebay.ca/itm/231461515915?_trksid=p2055119.m1438.l2648&ssPageName=STRK:MEBIDX:ITPurchases made through these links may earn this site a commission from the eBay Partner Network

 

Omega 232.30.42.21.04.001
MOVEMENT
Caliber: Omega 8500
Self-winding movement with Co-Axial Escapement for greater precision, stability and durability. Free sprung-balance, 2 barrels mounted in series, automatic winding in both directions to reduce winding time. Bridges and the oscillating mass are decorated with exclusive Geneva waves in arabesque.

Power reserve: 60 hours

From here

http://www.omegawatches.com/collect...ean-600-m/omega-co-axial-42-mm/23230422104001

 

Thanks!!

 

Ahhhh yes, The Google knows all!

 

I thought i'd be the first place to look.
If I can do it in 30 seconds then anybody can.