I am listing the watch from the Harley Owners Group, HOG, established in 1983. But I don't know that date manufactured it 1983 or later. The part number is, however:  #9965496HG. 
The watch has a HD leather wristband and a tin case from HD. I took the watch to a watch repair shop, and they replaced the battery with no problem. It now runs quite well.
How this watch works: The back of the watch is what you see when the watch is closed. 
The body slides out and then the whole body flips over and slides back into the cavity where it snaps in.
I believe, but do not absolutely know, that there was a brown cardboard box with a Harley Davidson logo on it and the instructions on Kraft type paper with that same logo on it also. And I think there should have been a band, like a cigar band, with the Harley Davidson logo on it. This would have gone around the wristband part that shows when in the case. You can see the two slots where the band wraps in and out.
Bob bought this watch years ago and Bob is no longer is able to appreciate many of his purchases from the past. But Peggy, his wife, says it was purchased many years ago. She is asking me to sell it for her.
So, I did find one on the internet, but it was all scratched up. He had put in a new battery, and he said it was working well too. Just an FYI.
This watch is still all shiny and appears never to have been used. But there are a few very tiny scratches from handling by us. 
Please email with any questions.