Author

TOKEI Editors

Japan-based, Japanese-language primary sources
Verified-claims editorial policy (as_of dating)
Affiliate links always disclosed

Watch enthusiasts based in Japan. We cover the Japanese market from the inside — JDM-exclusive releases, Japanese-language sources — verify variable facts before publishing, and disclose every affiliate relationship.

ARTICLES

Articles by TOKEI Editors

Watch Size Guide: Matching Case Diameter and Lug-to-Lug to Your Wrist

Shortlist case diameter from wrist circumference, then confirm lug-to-lug — it decides fit more than diameter does.

TOKEI Editors · 2026-07-15

Japan-Exclusive G-Shock: The JDM Models Worth Knowing (and How to Spot One)

Oceanus, the current Frogman, several 5000-series colourways and some GMW-B5000 finishes are Japan-only as of 2026-07-15 — look for a '-JF' model code.

TOKEI Editors · 2026-07-15

Which Seiko Lines Are Actually JDM-Only? A Working List

Credor, Seiko Selection and Presage's craft dials stay Japan-only as of 2026-07-15; King Seiko no longer does.

TOKEI Editors · 2026-07-15

What Is a JDM Watch? Japan-Only Models and How to Buy Them

A JDM watch is officially sold only in Japan. Buy via specialist exporters, marketplaces or proxy services; expect shipping/service costs, check warranty scope (often domestic-only), and verify the reference against Japanese sources.

TOKEI Editors · 2026-07-15

Japanese Watch Brands, Explained: Seiko, Grand Seiko, Citizen, Casio & Orient

Seiko = breadth and heritage; Grand Seiko = high-end finishing; Citizen = light-powered Eco-Drive practicality; Casio/G-Shock = toughness; Orient = value mechanicals. Japan-only models are the layer most coverage misses.

TOKEI Editors · 2026-07-15