the advert is just for fun, my dial shouldn't have the thunderbird logo. i understand from a watchmaker that mine should be a turn o graph bezel instead of the flouted w/g bezel. the case cover has been replaced before, the rough estimate of the watch age is between 57-58, serial is 388xxx, the old man cannot remember when he got it liao.. dial, hr & min hands have been replaced.. so this watch is a united nations now. haha