I’m couldn’t say a price without better photos. Even then I would be guessing. Maybe $500-$700 CDN? Your lugs seem a little rounded from polishing. Do a search on Ebay’s sold listings for a value. Look at 1960s Seamasters (for comparables, note the thin lugs are different than the thicker lugs seen in the 50s) and check for reference #s 14725 14765 and 14770, you could also look for Seamaster with the excellent 562 movement, which yours likely has. Yours is a front loader, so a watchmaker will need to help you confirm - the back doesn’t come off, the crystal needs to be removed with a special tool to get at the movement). But for insurance purposes $1,500 CDN would ensure you could easily replace yours with one that was collector grade, and serviced, if needed.
Sending it to Omega would cost a bundle and they can often replace vintage parts with new ones, affecting collector value. A good watchmaker with an Omega account will often be fine, and certainly cheaper. Where in BC are you?