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Seiko Caliber 7006: Guide, Specs & History

The Seiko caliber 7006 is a mechanical automatic movement with central seconds and a day-date display. Its numbered date has a crown quickset; the weekday is adjusted through the hands. Understandi...

Seiko Caliber 6119: Complete Movement Guide, Specifications & History

The Seiko 6119 is one of the defining automatic movements of the late-1960s and 1970s Seiko 5 era. Found in everything from restrained everyday watches to striking sports-inspired designs, it combi...

Seiko 6309 – Beginner’s Guide

The Seiko 6309 is a beloved late-’70s/’80s automatic found in iconic “Turtle” divers and crisp dress pieces. This beginner’s guide covers specs, what to check before buying, service tips, and recom...

Seiko Caliber 7009 — Beginner’s Guide

Seiko 7009 Beginner’s Guide: what it is, how to spot good examples, buying checks, servicing tips, and styling — with real references from the 1970s–1980s.