Sept 28, 2026 · Bonus theme: Watch culture

NO QUARTZ Ref. NQ0006: the answers

NO QUARTZ is a free daily watch quiz: 5 new questions every day, from easy to expert. Here are the questions from Sept 28, 2026, with the answers and the story behind each one. The last one is the Grand Complication, a harder bonus question for players who scored 80 or more.

Question 1·Multiple choice

In watch jargon, what is a 'complication'?

  • A.A watch that keeps needing repairs
  • B.A decorative pattern on the dial
  • C.A case that is unusually thin
  • D.Any function beyond showing hours, minutes and secondsCorrect answer

The story behind it

A date window counts, and so do chronographs, GMT hands and moonphases. By convention the tourbillon and even self-winding are also called complications, although they add nothing you can read on the dial.

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Question 2·Multiple choice

In 1949 Panerai registered 'Luminor' as the name of a new self-luminous substance, replacing its earlier Radiomir. What was Luminor based on?

  • A.Radium bromide
  • B.TritiumCorrect answer
  • C.Promethium-147
  • D.Strontium aluminate

The story behind it

Radiomir, from 1916, was a radium-based powder; Luminor swapped radium for tritium, a hydrogen isotope with much lower radioactivity. The name began as a lume, not a watch, which is why 'Radiomir' and 'Luminor' now label case families rather than paints.

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Question 3·Multiple choice

The Breitling Navitimer was launched in 1952 as the official watch of which organisation?

  • A.The Royal Air Force
  • B.The Aircraft Owners and Pilots Association (AOPA)Correct answer
  • C.Pan American World Airways
  • D.The US Navy's Blue Angels

The story behind it

The Navitimer's circular slide rule was not new in 1952: Breitling had launched its slide-rule bezel a decade earlier on the Chronomat. What the Navitimer added was a customer with a membership list, the AOPA, whose members got a navigation computer on the wrist.

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Question 4·Multiple choice

The earliest known lever escapement survives in a watch by Thomas Mudge, now in the Royal Collection. Whose watch was it?

  • A.Queen CharlotteCorrect answer
  • B.King George II
  • C.Marie-Antoinette
  • D.Catherine the Great

The story behind it

George III acquired it in 1770, and Mudge called it 'the Queen's watch' and 'the most perfect watch that can be worn in the pocket, that was ever made'. The Royal Collection judges his lever, with the exception of the balance spring, the greatest single improvement ever applied to watches.

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Question 5·Put in order

Rank these watch houses by founding year, earliest first.

Correct order

  1. 1Breguet (Paris)
  2. 2LeCoultre (Le Sentier)
  3. 3Heuer (Saint-Imier)
  4. 4Hamilton (Lancaster, Pennsylvania)

The story behind it

Antoine LeCoultre's first workshop grew out of his invention of a machine to cut watch pinions, not out of finished watches. Edouard Heuer was only 20 when he opened his shop on the family farm at Saint-Imier, making mostly silver pocket watches.

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Grand Complication (bonus)·Multiple choice

From 1969 until 1999, the Henry Graves Supercomplication belonged to which collection?

  • A.The Smithsonian's National Museum of American History
  • B.Seth Atwood's Time Museum in Rockford, IllinoisCorrect answer
  • C.The Beyer Clock and Watch Museum, Zurich
  • D.The Metropolitan Museum of Art, New York

The story behind it

Industrialist Seth Atwood bought the watch from Graves' heir in 1969 and put it in his Time Museum in Rockford, Illinois. When the museum closed, Sotheby's sold it in New York on 2 December 1999 for US$11,002,500, a record for any horological object. The anonymous buyer was later revealed in a lawsuit over unpaid Sotheby's bills to be Qatar's Sheikh Saud Al-Thani. He died in London in November 2014, just days before the watch's Geneva sale, where it more than doubled its 1999 price at CHF 23.2 million (about US$24 million).

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