Need help making a decision Rolex VS Omega

[justbesomeday]

Hi All,
I'm new to the forum. I'm sorry to start with a question. I'm looking at Rolex Deepsea D-Blue 12660 pre-owned and brand new Omega Seamaster Planet Ocean Chronograph. They both retail for around $12.5K.
This will not be my everyday watch. I'm having hard time to decide. I like the way omega looks but in the long run I think Rolex is better option. I can get Omega for $4K less than Rolex so there is that factor. I would like to get one this week. Any advice would be greatly appreciated. Thanks