# TOKI
> TOKEI — Japanese watches, understood. Seiko, Grand Seiko, G-Shock, Citizen and Casio references explained from Japan: JDM-exclusive models, honest buying guides and a reference database.

## Brands
- [Japanese Watch Brands, Explained: Seiko, Grand Seiko, Citizen, Casio & Orient](https://toki.company/en/articles/japanese-watch-brands-guide): 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.

## Buying Guide
- [Japan-Exclusive G-Shock: The JDM Models Worth Knowing (and How to Spot One)](https://toki.company/en/articles/japan-exclusive-gshock): 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.
- [What Is a JDM Watch? Japan-Only Models and How to Buy Them](https://toki.company/en/articles/what-is-a-jdm-watch): 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.
- [Which Seiko Lines Are Actually JDM-Only? A Working List](https://toki.company/en/articles/what-seiko-lines-are-jdm): Credor, Seiko Selection and Presage's craft dials stay Japan-only as of 2026-07-15; King Seiko no longer does.

## Guides
- [Watch Size Guide: Matching Case Diameter and Lug-to-Lug to Your Wrist](https://toki.company/en/articles/watch-size-guide): Shortlist case diameter from wrist circumference, then confirm lug-to-lug — it decides fit more than diameter does.