Seiko watches — specs, live prices & buying guides
Spring & Dial
A Seiko-focused reference publication — the mainstream Seiko range plus the movements and Japanese-domestic-market references behind it — built on Seiko's own published specifications and live, date-stamped prices rather than a test bench it says plainly it doesn't run.

About Spring & Dial
Spring & Dial covers one make closely: Seiko, across the mainstream lines a buyer actually shops — Seiko 5, Seiko 5 Sports, Prospex, and Presage — plus the calibers inside them and the Japanese-domestic-market (JDM) references that never reach international shelves. Its hero states the whole scope in a line — "Every current Seiko, with the specs and the live price" — and its six sections follow the questions people search: Best (roundups organized by the constraint that decides the buy — budget, wrist size, water rating), Compare (head-to-head tables with both watches' published specs), Calibers (structured movement references — beat rate, power reserve, jewels, stated accuracy), JDM (what a J-suffix versus a K-suffix actually means), Watches (one page per reference with full published dimensions), and Guides (direct answers in the first sixty words).
Its defining editorial position is printed on every page rather than buried in the small print: "We have not handled, worn, timed or measured any of these watches, and we say so." The count of watches it claims to have tested is zero — its author, Stephen V., states plainly, "I have no test bench, no timegrapher and no owned units of the watches on this site." What it does instead is compile every published specification from Seiko's own documentation, cite the standards those figures reference — ISO 6425 for divers' watches, ISO 22810 for general water resistance — and show the arithmetic, weighing price against specification and case dimensions against a typical wrist. Where Seiko doesn't publish a figure — it is notably inconsistent about lug-to-lug — the spec table prints "Not published by Seiko" rather than an estimate. Prices are pulled live and stamped with the date they were checked, and any figure more than 48 hours old is suppressed entirely and the buy button falls back to "Check price."
That refusal to claim a test it never ran is exactly how Type 5 Marketing operates. The brand is funded by affiliate commission on qualifying purchases and nothing else — no paid placements, no sponsored rankings, and no free-product arrangements — with commission stated plainly as not a selection criterion and "As an Amazon Associate we earn from qualifying purchases" disclosed up front. Published by Type 5 Marketing LLC and written by an enthusiast who leads with Seiko's own spec sheet and admits the work he hasn't done, it applies the same independence and disclosure standard we hold across every property in the portfolio.
Spring & Dial is owned and operated by Type 5 Marketing LLC and applies our shared review methodology and affiliate disclosure. It reflects our affiliate marketing capability in practice.
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