Hi and welcome to RG.
In the collectors area in the forums you'll find "our" trusted dealers, all the dealers listed in there have access to most replicas and have a proven track record of quality service at reasonable prices.
If you're looking for the planet ocean there are a few versions of this watch available from the dealers ranging from quartz versions to at least 2 automatic versions. The best version is called ultimate, often reffered to as UPO in the forums. I would advise you to have a look on the Omega section of the forums before buying so you can familiarize yourself with the different versions and their flaws so you can make a informed purchase and avoid being disappointed.