Nice Bike, cables routed under the BB shell, and braze-on front derailleur hanger means that it's likely Mid-80's. If it is a Tresviso(the model, second in the Pinarello line-up after the Montello) then it is well worth the asking price. Someone will snap that up quick in San Francisco. Pinarellos were made in the town of Tresviso, and all the headbadges say it, this frequently seems to confuse people and I see a lot of lesser bikes labled Tresviso. A Tresviso will say it on the top tube, and will be made of SL or SLX, lower models generally were constructed of Tretubi.

This one looks to be in pretty nice shape, it may well be worth the money no matter what the model, that's up to you. But in that market you don't have very long to think about it

I have one of these Tritubi models and it's a great bike, my century+ ride. That frame looks very much like mine with some pantographing mine lacks, so I'd guess it was higher in the line-up. Could very well be a Tresviso.

edited to add: It's something close to a divine miracle anytime an old Pinarello has it's decals intact.