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
SEIKO PERPETUAL CALENDAR SBQJ002 8F56-001A Quartz GMT Analog Date 10bar from JP | eBay
Sold Price: Seiko Perpetual Calendar 200M Men's Wristwatch 8F56-00JO - February 1, 0123 7:00 PM EST
Seiko 8f56-00d0 / sbcj019 for $1,300 for sale from a Private Seller on Chrono24