I have an Omega Speed Master Watch from either 1969/1970 and want to know its value. The watch band has been replaced with an original one from the same period.
First of all: HELLO.... How you know its from 1969-1970? You have the paperwork along with the watch? Otherwise why you don't post photos of the watch and the movement to see if you are right about the year?
rcd582, first of all, welcome to OF. Second, while there are many knowledgeable members here who are more than willing to help you, as an initial matter they want to know what YOU think and whether you have done any research on your watch and its value, etc. Last, high resolution photos of your watch, including the movement, will really help us to help you.
Then have your son take good photos of the dial and the inside case back, so you can post. Otherwise, you're not going to get much help since the group members aren't clairvoyant.