Seiko Chronograph battery replacement quartz movement 7T62 - YouTube
Mens Seiko Perpetual Calendar Watch, new battery, needs programming 8F32-0019 | WatchCharts
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 8F33-0040 Battery dead Quartz analog watch+links | eBay
Seiko SSC787 Solar Coutura Chronograph and Perpetual Calendar Watch