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News, updates about IPR and its training programs, news about watchmaking, watches, articles about unnecessary complications , and much more.


The Balance Spring: The Dispute between Hooke and Huygens over the Soul of the Watch
Hooke or Huygens? Discover one of the great duels in watchmaking history: who really invented the balance spring that turned the pocket watch into a precision instrument.

Sílvio Pereira
5 days ago6 min read


Between Time and Trance: The Pocket Watch in the History of Hypnosis (19th–20th Centuries)
Discover the link between the pocket watch and hypnosis, the technique for accessing the unconscious, from Mesmer and Braid to the stage and the consulting room.

Sílvio Pereira
5 days ago4 min read


Time as a Gift: Three Watches Given as Presents That Became Legends
Three gifted watches that became legends: Gago Coutinho and Sacadura Cabral’s Patek Philippe, the Breguet No. 160 “Marie-Antoinette” and Paul Newman’s Rolex Daytona.

Nuno Margalha
6 days ago6 min read


The clocks and watches of Stranger Things
With the Stranger Things finale set for 1 a.m. on the 1st, we look at the clocks, the watches and the perception of time in the Netflix series.

Nuno Margalha
6 days ago7 min read


The Stackfreed
The stackfreed: history, working and legacy of the Renaissance device that tried to tame the uneven torque of the mainspring before the fusee prevailed.

Sílvio Pereira
6 days ago7 min read


The Biological Clock and the Mechanical Clock
We have perfected ever more precise instruments to measure outer time, yet ignored our inner time. A reflection on the biological clock and the mechanical watch.

Sílvio Pereira
Oct 165 min read


The Guardian of Isochronism: the Maltese Cross and the Quest for Constant Force
The Maltese cross stopwork limits the mainspring to its most stable zone, improving isochronism. A history of the mechanism and its Vacheron Constantin legacy.

Sílvio Pereira
Oct 167 min read


In Praise of Stubbornness in Watchmaking
Stubbornness, pessimism and optimism: the triangle that drives the world of watchmaking. Discover how it works and how it is taking shape in Portugal.

Nuno Margalha
Oct 168 min read


Swiss Made: law, percentages and historical evolution (EU and Portuguese framework)
What does Swiss Made mean today? Swiss law, the 60% cost rule of the 2017 Swissness reform, what has changed since 1971 and how origin works in the EU and Portugal.

Nuno Margalha
Oct 166 min read


16 October
New York hosts three watch fairs on the same weekend. Urwerk presents the UR-300 Time Quantum, Arnold & Son the DSTB Stop-Seconds and Hublot reissues its 1980 watch; Hermès and IWC round off the day.
IPR – Instituto Português de Relojoaria
Oct 166 min read


SAV Manifesto, or a Letter of Intent on Watch After-Sales Service
Watch after-sales service (SAV) links tradition and innovation: servicing, restoration, transparency, ethics and the challenges facing watch repair in Portugal.
Bruno Leal
Oct 158 min read


Arnold or Breguet? The quiet controversy behind the origin of the tourbillon
Was the tourbillon Abraham-Louis Breguet's invention alone, or did it emerge under the influence of the English genius John Arnold? A quiet controversy revisited.

Sílvio Pereira
Oct 156 min read
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