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Justin Mastine-Frost
Justin Mastine-Frost

Montreal to Vancouver, to New York, to Toronto, Justin Mastine-Frost’s career and personal interests have led to his spending quite a bit of time on the road. Starting his professional endeavours in the field of photography, then moving into construction, followed by becoming a certified BMW technician, this unique interplay between visual arts, creation, and problem solving provided a unique background for his entry into editorial. After covering the automotive industry for a number of years, a passion for collecting soon led him into the watch world. His editorial byline has appeared in Esquire, Bloomberg, High Snobiety, Road & Track, and Robb Report, and others. He has also contributed to several noteworthy books on watchmaking, including the Millenium Watch Book series, Sea Time, Bulova: A History of Firsts, and Bvlgari Beyond Time. After taking up residence in Toronto, he is now Director of Digital Content at SHARP Magazine.

Gold Is Down 20% Since January. Rolex and Cartier Prices Are Up.

Gold Is Down 20% Since January. Rolex and Cartier Prices Are Up.

The World Gold Council, Swiss export data and the secondary market all recorded the fall in gold. Retail price lists did not.

Aug 20, 2026

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3 min read

The New MING 37.06 Royal Selangor Puts a New Spin on Metalworking History in Kuala Lumpur. Ming Thein Told Us Why.

The New MING 37.06 Royal Selangor Puts a New Spin on Metalworking History in Kuala Lumpur. Ming Thein Told Us Why.

Royal Selangor hammered the dial and MING cased it in brushed titanium. All 88 pieces were assembled in Kuala Lumpur, a first for the brand.

Jul 30, 2026

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3 min read

Why Is the Rolex Daytona So Expensive?

Why Is the Rolex Daytona So Expensive?

A steel Rolex Daytona lists at $16,900 and trades for roughly double on the resale market. A look at the design, the scarcity, and the Paul Newman history behind the price.

Jul 20, 2026

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5 min read

Every Watch Secretly Powered by the Zenith El Primero

Every Watch Secretly Powered by the Zenith El Primero

The Rolex Daytona ran on it, so did watches from Movado, Ebel, Concord and Panerai. Now, on the G.F.J. Calibre 135 Double Signed with Naoya Hida, Zenith's name shares the dial.

Jun 29, 2026

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3 min read

Does a "Sleeper Watch" Still Exist in 2026?

Does a "Sleeper Watch" Still Exist in 2026?

In this digital era, can anything really still be called a sleeper or hidden gem?

Jun 23, 2026

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3 min read

Philippe Stern, the Patek Philippe Leader Who Shaped Modern Mechanical Watchmaking, Dies at 87

Philippe Stern, the Patek Philippe Leader Who Shaped Modern Mechanical Watchmaking, Dies at 87

He carried Patek Philippe through the quartz crisis and gave it the Nautilus

Jun 15, 2026

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2 min read

Beyond the Holy Trinity: The Eight Brands That Now Define Serious Collecting

Beyond the Holy Trinity: The Eight Brands That Now Define Serious Collecting

The old consensus held that every collection needed a Patek, an AP, or a Vacheron. The new consensus is broader, deeper, and more interesting

Jun 2, 2026

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3 min read

Is the Swatch x Audemars Piguet Royal Pop Genius or Reckless?

Is the Swatch x Audemars Piguet Royal Pop Genius or Reckless?

The Royal Pop puts the Royal Oak silhouette in a Swatch boutique for $400. We talked to the designer of the Offshore, two collectors, and a watch publisher about whether AP just made the smartest or most dangerous move in modern watchmaking

May 14, 2026

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3 min read

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NAVIGATION

ABOUT

CONTACT

SUBSCRIBE

SITEMAP

TOPICS

WATCHES

MACHINES

STYLE

CULTURE

FOOD & DRINK

TRAVEL

SECTIONS

CAUGHT OUR EYE

ASK THE...

GO DO SOMETHING

MY FIRST WATCH

follow us


Privacy Policy

Terms & Conditions

© 2026 Crown & Caliber. All Rights Reserved.