Seiko 8F56-0020 GMT Copper Dial Perpetual Calendar HAQ | eBay
8f56 Movement Flash Sales, UP TO 65% OFF | www.editorialelpirata.com
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