Long Nguyễn Thanh on Instagram: “Seikomatic-R Diashock 30 Jewels Pocket ,Cal.8305 with calendar. All original parts with good condition. OH already( serviced ). Case…”
EXC+++] Seiko SEIKOMATIC-R 8305-8030 30 Jewels Automatic Men's Watch from JAPAN | eBay
FS: Seikomatic slimdate 30 jewels gold plated £60 | The Watch Site
Seiko Vintage Seikomatic-R Date Diashock 30 Jewels 8305-8010 August 1965 | WatchCharts