SEIKO, Quartz Perpetual Calendar, ca 1990. | Barnebys
Identify] Just bought this secondhand Seiko Quartz watch with a perpetual calendar, but can't find any pictures of it online to know if it's legit : r/Watches
Seiko – Perpetual Calendar (for men) - Catawiki
SEIKO QUARTZ PERPETUAL CALENDAR Watch 6M13-0010 AGE OF DISCOVERY Gold Leather | WatchCharts
Seiko - 6M13-0010 - Age Of Discovery - Perpetual Calendar - - Catawiki