8F56-0050] 1998 Perpetual Calendar -- bezel not rotating, battery needs replacement, needs overhaul in general -- but hey it's an interesting piece (and still works)! : r/Seiko
For sale: Seiko Perpetual Calendar 8F56-0080 HAQ | By VintageSeiko.nl | Facebook
Seiko 8f56-00d0 / sbcj019 for $1,300 for sale from a Private Seller on Chrono24