Knowledge

The Supermarket Billionaire and His 800 Pocket Watch Collection

The tale of the late Erivan Haub.

The Mega-Watch of the 1990s Offered for a Song

The Gerald Genta Grande Sonnerie.

Explaining the Citizen Caliber 0100 – The Most Accurate Watch Ever

Just one second a year.

Settling the 300-Year Old Dispute – Who Invented the Balance Spring?

The irascible Robert Hooke and his long-lost notes.

How “Vintage” Dials are Made at Glashütte Original

Producing the brilliantly retro Sixties dials.

In-Depth: Krayon Everywhere, the Mechanical Sunrise and Sunset Calculator

Explaining the uber-complication.

Innovating and Inventing: The Greubel Forsey Différentiel d’Égalité Explained

Constant force revisited.

Up Close: Patek Philippe Observatory Tourbillon Pocket Watch No. 198’312

Hardcore watchmaking at its best.

Hands-On with the Audemars Piguet Royal Oak “A-Series” Prototype

Icon, unnumbered.

When Accuracy Mattered – Part II: The Rise and Fall of Observatory Competitions

And the most precise mechanical watch ever?