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Article | Featured

Watchmaker’s Bench: Breaking Down a Seiko 6139 Chronograph

A watchmaker breaks down a legendary chronograph movement.
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Article | Featured

Chronography 14: 5 Decades of the Heuer Monaco

There is perhaps no other complication as popular as the chronograph, appealing to both seasoned enthusiasts and casual consumers alike. And “Chronography” is our ongoing …
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Article | Featured

Watchmaker’s Bench: Are All Chronographs Created Equal? Integrated Versus Modular Chronographs

Watches can be, well, complicated, and not all of the information out there is always accurate or reliable. So we’ve brought onboard Ashton Tracy, a …
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Article | Multi-Part Series

Chronography 13: The Important History of the Valjoux 7730, a Classic Mid-Century Movement

The Valjoux 7730 is a hand-wound, dual-register chronograph movement produced from 1966 to 1973. The 7730 includes a small seconds sub-dial at 9:00, a jumping …
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Article | Multi-Part Series

Chronography 12: Seiko’s Modern Mechanical Chronographs

In the last two installments of Chronography, we took a look at three excellent vintage …
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Article | Multi-Part Series

Chronography 11: The Citizen “Bullhead” Challenge Timer

We went in-depth with the caliber 8110 in our last installment of Chronography, where we highlighted its technical superiority over its Seiko brethren. Today, we’re …
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Article | Multi-Part Series

Chronography 10: Three Excellent Vintage Calibers from Seiko and Citizen

In 1969, Seiko’s 6139 chronograph caliber was nothing short of revolutionary, incorporating a column wheel …
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Article | Multi-Part Series

Chronography 9: Valjoux 72–The Driver’s Engine

Back when the Valjoux 72 was conceived, watchies didn’t fret on forums about the superiority of in-house over ébauche movements. After all, most watch companies …
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