If you like reading ride reports check out rtw with Noah on advrider. He rode around for 2 or 3 years and posted about everything including breakdowns. If I remember correctly his first post may be a synopsis of his adventure including the information you are looking for.
It's worth a read either way.
That's quite a bit more than I was expecting! I don't think most 690's cover many miles. Haven't seen many over 20k, and most are below 10k. I thought there might be a couple of members on here who had done more...