SEIKO 2418 MOVEMENT Automatic 23J USED NOT WORK GOOD BALANCE USED | eBay
Watch Mo 'To PH - #wotd is this vintage Seiko 2418-3040.... | Facebook
Bought this vintage Seiko from watch alley in Seoul. Can anyone tell me more about it and what it's worth? The back dial reads 2418-3020 : r/VintageWatches
Seiko 2418-301A from 1974 (Serviced) – Paleh
Vintage Seiko Hi-Beat Automatic Watch with Blue Dial - Watches - Wrist - Horology (Clocks & watches)
SEIKO Japan Automatic Unisex Hi-Beats 2418-7010 | Daim Traders