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Patek Philippe 97975: The First Wristwatch with Perpetual Calendar (Image © Revolution)

At the Watch Art Grand Exhibition: The World’s First Perpetual Calendar Wristwatch

At the Watch Art Grand Exhibition in Singapore, Revolution got a closer look at some of the most precious wristwatches in Patek Philippe’s vault.
Patek Philippe Ref. 5212A-001 Calatrava Weekly Calendar (Image © Revolution)

Project Planning with the Patek Philippe Ref. 5212A-001 Calatrava Weekly Calendar

Patek Philippe unveils a unique new Calatrava Weekly Calendar for those who have their upcoming year clearly in view.
Patek Philippe Star Caliber 2000 (Image: THG)

10 Equation of Time Watches

What has remained unchanged in the developing story if watchmaking is the rarity of equation of time watches; here are some notables in this exclusive club.
Omega Seamaster Planet Ocean

Automatic Chronographs of the 21st Century

It’s been 50 years since the first automatic integrated chronograph was created. Here’s what’s been developing since then.
Ref. 5059

Very Briefly: Patek Philippe Perpetual Calendars (Pre-2000, Prices)

A skeletal essentials-only history and price guide to Patek Philippe perpetual calendar watches from the 20th century, in mostly incomplete sentences.