Audemars Day-Date Moonphase Ref. 25589BA

[doremi]

Hi Guys,

Recently new to the hobby and fell in love with this watch:

https://www.chrono24.com/en/audemarspiguet/classic-dress-watch-day-date-moonphase-18k-yellow-gold-circa-1986-ref-25589ba--id2313283.htm?urlSubpath=%2Fuser%2Fnotepad.htm

The prices on this watch is all over the place, from over $15k to $8k on Tourneau. I've tried to do as much online research as I can about this one but usually Royal Oaks or the Jules collection usually comes up.

Any aficionado/expert care to weigh in on the $8k pricing of this watch?

(I don't believe the $5k prices on Ebay)

Thanks and Happy Holidays!

[Taipeezy]

I bought one in march this year for around $5k, and now I need to put in another $2300 for complete service. Right now I think it's worth around 9k