1991 Seamaster Constellation Help

I'm here for a little help. I have a Seamaster Constellation 366.0884 on bracelet. The serial number starts with 5393 making it a 1991 model. The dial has a beautiful gold finish with the day/date in Japanese and English. The crystal has 2 chips and no Omega logo in the center, so I assume it is a replacement. Everything else is all original as far as I can tell. I found a photo of the same model online in really bad condition, but it had the same gold bezel. The bracelet fits my 6 1/2 inch wrist and I do have 2 additional links (but I only have 1 of the 4 endcaps for those links).
My options now are to get it serviced and replace the crystal, or sell it. I want to get as much information as possible before making a decision. I don't know how rare and/or valuable this model is. Any recommendations? I just got an all original Seamaster 120 from 1968, so I might be leaning towards selling but am not sure. What should I do??

Hello and welcome here. If you plan to sell it, a service will probably cost you more than it adds value on such a piece. It's not a highly collectible piece like a Constellation Pie pan and isn't from the greatest period from Omega. The Movement is a basic ETA and the design probably don't speak for most. Looking at the Timegrapher this Watch needs a service if you plan to wear it. A Seamaster 120 is a really different Watch so keeping both would be a good Option.

Thanks. I think I am leaning toward selling.

thanks