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GUIDES & TIPS.

Everything you need to know about your Casio watch. Practical guides, explanations and advice.

Guide
March 9, 2026

How to find your Casio watch module number

The module number is a 3 or 4 digit code engraved on the back of every Casio watch. Here's how to find it in 30 seconds.

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Guide
March 9, 2026

Casio watch ranges: a complete guide

G-Shock, Pro Trek, Edifice, Baby-G, Vintage, Oceanus: all the ranges, their features and who they're for.

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Guide
March 9, 2026

G-Shock: everything about Casio's toughest watches

From the 1983 DW-5000C to titanium MR-G: history, technologies and collections of the G-Shock range.

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Explainer
March 9, 2026

Common Casio watch functions explained

Alarm, stopwatch, timer, world time, backlight: what each function does and how it works.

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Explainer
March 9, 2026

Casio watch water resistance: understanding bars and meters

5 bar, 10 bar, 20 bar, 200m: what it actually means and what you can (or can't) do with your watch.

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Guide
March 9, 2026

Casio F-91W: the world's best-selling watch

Module 593, produced continuously since 1989. Everything about this industrial design icon.

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