Watchpedia

Watch Complications Explained: All 22 Types and How They Work

A complication is any mechanical function on a watch beyond telling the time. This guide explains all 22 of them, how each works and the references that define them.

What Is a Watch Crown? Types, Shapes and Functions Explained

The crown is the small knob on the side of a watch case that winds the movement and sets the time. Here is how it works, the types and shapes you will meet on Rolex, Cartier, Panerai and Richard Mi...

Aftermarket and Custom Watch Dials Explained: Warranty, Value and Legality

Aftermarket, custom, refinished, service and factory dials are five different things. Here is what each term means, what it does to your warranty and resale value, and where the law now stands.

Watch Crystal Types Explained: Sapphire, Mineral and Acrylic

Sapphire, mineral or acrylic? A clear, practical guide to the three main watch crystal types, how they compare on hardness and clarity, and how to tell which one sits on your wrist.

GMT Watches Explained: Function, Types and History

A clear guide to GMT watches: what the fourth hand does, how to read a second and third time zone, the difference between Caller and Flyer GMTs and the Rolex GMT-Master II references worth knowing.

Watch Water Resistance Explained: What the Ratings Really Mean

Water resistance ratings are easy to misread. Here is what the numbers mean, the standards behind them and what your watch can actually handle.

What is a Chronograph Watch?

The chronograph is one of the most desirable complications in the horological world, but not many know exactly what it is and the purpose it serves. In this article, we clarify what a chronograph w...

What is a Tachymeter and How Does it Work?

The tachymeter is one of watchmaking's most recognisable features, yet surprisingly few watch owners know how to actually use one. This guide breaks down exactly what a tachymeter is, the simple fo...

What is a Watch Bezel? Types, Functions and Why It Matters

If you have ever looked closely at a luxury watch, you have probably noticed the ring that sits around the outside of the dial. That ring is called the bezel, and it is one of the most important de...