AN INDEPENDENT JAPANESE-WATCH REFERENCE

Japan’s watches.
Understood from the inside.

Model-code references, JDM-only releases and the Japanese-language sources most English coverage never reads — written for people deciding what to buy, and where. We sell nothing ourselves: when a page points you to a shop, it is someone else’s, and the price carries the date we checked it.

23
PAGES PUBLISHED
6 references
MODEL-CODE GUIDES
93
SOURCES CITED
A Seiko SKX007 automatic dive watch, the discontinued reference this page catalogues
REFERENCE
Seiko SKX007 Reference Guide: Specs, Lineage and the SRPD Successors
Read the reference →
真
PRIMARY SOURCES, CITED

Specs come from official documentation and Japanese-language sources, listed at the foot of the page so you can check us. If we can't source it, we don't state it.

護
NO HYPE, NO VERDICTS

We never tell you a watch will appreciate, and we never authenticate one. Both are jobs for someone else — we say who.

届
WHERE TO BUY — WE HOLD NOTHING

TOKI carries no inventory and ships nothing. We link out to several retailers and earn no commission on any of them — we hold no affiliate accounts.

証
NO UNDATED PRICES

We don't publish a price without the date we checked it. If we can't date it, we don't print a number — and we never claim a shop has stock right now.

型番と実物 — REFERENCES & PRODUCTS

The Reference Desk

ALL PRODUCTS →
内側から — FROM INSIDE JAPAN

Guides

ALL GUIDES →
A Seiko 5 automatic wristwatch — the family of donor watches most Seiko mod builds start from; illustrative rather than a modified exampleGUIDEIsik (Wikimedia Commons)

Seiko Mods, Honestly: What You Get and What You Give Up

SPECS · LINEAGE · FAQ
A Grand Seiko SBGA011 wristwatch showing the flat mirror-polished case surfaces and sharp ridge lines that Zaratsu polishing produces — illustrative of the technique, not a photograph of the polishing processGUIDEFaustine seiko (Wikimedia Commons, CC BY-SA 3.0)

What Is Zaratsu Polishing? Grand Seiko's Distortion-Free Mirror Finish, Explained

SPECS · LINEAGE · FAQ
A Grand Seiko Caliber 9S64 hand-wound mechanical movement — illustrative of the mechanical movement type compared in this guide, not the specific 6R35 caliber cited in the accuracy figuresGUIDESTSPP2 (Wikimedia Commons, CC BY-SA 4.0)

Mechanical vs Quartz vs Solar vs Spring Drive: Which Japanese Watch Movement Is Right for You?

SPECS · LINEAGE · FAQ
A Citizen Attesa Eco-Drive ATV53-3023 — illustrative of a light-powered Citizen watch, not the specific caliber whose run-time figures are cited in this articleGUIDEKansai explorer (Wikimedia Commons, CC BY-SA 3.0)

How Citizen Eco-Drive Works: Light In, Time Out

SPECS · LINEAGE · FAQ
Frontalansicht Zifferblatt laufender Sekundenzeiger Seiko Prospex SNJ025-P1 2020GUIDEVSchagow

JDM vs International Seiko: What Actually Differs

SPECS · LINEAGE · FAQ
Grand Seiko & Tirta BambangWirawan at Soehanna Hall Energy BuildingGUIDEPablo Bila

Spring Drive Explained: How Seiko's Hybrid Movement Works

SPECS · LINEAGE · FAQ
A vintage King Seiko Automatic Special Hi-Beat 5246-6000 — an original-era King Seiko from the 1960s-70s rivalry with Grand Seiko discussed in this articleGUIDEDnalor 01 (Wikimedia Commons, CC BY-SA 3.0 AT)

King Seiko vs. Grand Seiko: How the Two Historically-Linked Lines Differ Today

SPECS · LINEAGE · FAQ
A watch brand's own boutique storefront — illustrating the authorized-dealer channel this article contrasts with grey-market and broker sellingGUIDEJamin (Wikimedia Commons, CC BY-SA 3.0)

Grey Market vs. Authorized Dealer Watches, Explained

SPECS · LINEAGE · FAQ
A Seiko sign in Tokyo's Ginza shopping district — illustrating the Japanese retail landscape this buying guide navigates from abroadGUIDEArjan Richter (Wikimedia Commons, CC BY 2.0)

How to Buy Seiko From Japan: Seiya Japan, Sakura Watches and What Changed in 2026

SPECS · LINEAGE · FAQ
A Casio Oceanus Cachalot OCW-P500TDJ-1A1JF — a Japan-market Oceanus model illustrating the premium solar/radio-controlled line discussed in this articleGUIDEKansai explorer (Wikimedia Commons, CC BY-SA 3.0)

Why Is Casio Oceanus Japan-Only? The Real Story

SPECS · LINEAGE · FAQ
A wristwatch dial sized to complement the wrist it's worn on, illustrating the case-diameter and lug-to-lug fit judged in this guideGUIDETechnewatches (Flickr, CC BY 2.0)

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

SPECS · LINEAGE · FAQ
A retail display of Casio G-Shock watches — illustrative photo of the G-Shock range, not the specific Japan-only reference numbers discussed in the articleGUIDEPittigrilli (Wikimedia Commons, CC BY-SA 4.0)

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

SPECS · LINEAGE · FAQ
A Seiko 5 wristwatch — illustrative photo of Seiko's everyday watchmaking, not one of the specific JDM-only models discussed in the articleGUIDEKanderstegen (Wikimedia Commons, CC BY 3.0)

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

SPECS · LINEAGE · FAQ
GUIDE

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

SPECS · LINEAGE · FAQ
GUIDE

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

SPECS · LINEAGE · FAQ
編集方針 — HOW WE WORK

What we do, and what we don’t

01
BUILT FROM PRIMARY SOURCES

Official specs, manuals and Japanese-language releases — not forum hearsay repeated as fact.

02
WORN OR SPEC-BASED, LABELLED

Every reference, product and guide says which it is, at the top. Today all 23 read spec-based: we run no worn-review programme, and we do not invent wrist time.

03
DATED PRICES, MORE THAN ONE SELLER

No price goes up without the date we checked it, and we don't build a page around a single shop's link.

04
LINES WE DO NOT CROSS

No investment calls, no authenticity verdicts, no vendor influence over what we conclude.

The full standard — sourcing, affiliate disclosure, and the lines we never cross — is on how we review.

刻
TOKI · JAPANESE WATCHES, UNDERSTOOD
REFERENCES · GUIDES · JDM TRACKING · 日本の時計を、内側から