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Results for The Rolex Submariner History

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In-Depth: A History of the Pulsations Chronograph SJX Watches
Aug 3, 2020

In-Depth: A History of the Pulsations Chronograph

In 1816, Louis Moinet accomplished a first in watchmaking: a timepiece that could precisely track elapsed time. Measuring periodicity on demand had been accomplished before, but the French watchmaker’s invention gave it the functionality and exactness that we expect today. In assessing prototypes, we often tend to forgive their shortcomings and rosily reminisce, rewriting flaws as charms. Moinet’s timepiece, however, was a prescient opus. The layout of the dial had the now-familiar large central hand and elapsed time in subdials. Two pushers controlled the start, stop and reset functions, the power reserve lasted over 30 hours, and the mainspring could be wound while the timing mechanism was engaged to allow for longer timing runs. Most impressive, though, was its precision. Louis Moinet’s compteur de tierces of 1816. Image – Louis Moinet Named the compteur de tierces, or “timer of thirds”, Moinet’s invention ran at 216,000 beats per hour, measuring time down to one-sixtieth of a second. To allow for this ambitious exactitude to be utilised, the central chronograph hand completed revolutions once per second – such that the user could easily see which sixtieth of a second the period in question ended on - and the watch had an extra sub-dial for tracking elapsed seconds in addition to those for the minutes and hours. Whys and wherefores An impressive story, except that it’s missing something. Why did Moinet build it? And what did he use it to measure? A...

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Tracing The History Of My Grandfather’s Pocket Watch And Delving Into English Watchmaking Quill & Pad
May 6, 2020

Tracing The History Of My Grandfather’s Pocket Watch And Delving Into English Watchmaking

Last year, Colin Alexander Smith's mother showed him a silver pocket watch. All she could tell him about it was that it had belonged to his grandfather. The watch appeared to be older than his grandfather, though, and he embarked upon a quest to identify it and discover the original owner. The story took a few interesting turns as he reveals here in a truly interesting trace of the origins.

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Recommended Watching: Roger W. Smith Explains History of the Mechanical Watch SJX Watches
Roger W. Smith Dec 18, 2019

Recommended Watching: Roger W. Smith Explains History of the Mechanical Watch

Just over two weeks ago the annual George Daniels lecture took place at the City University of London, an institution supported by the late watchmaker’s charitable trust. This year’s speaker at the sold-out event was none other than Roger W. Smith, protege and successor to Daniels. Just over an hour long, including questions, the lecture is erudite, accessible and packed with nerdy trivia, like the fact that a movement running at 28,800 beats per hour will make 252,288,000 vibrations per year. Roger explained the history and rationale behind the mechanical watch, and how watchmakers are working to improve it even today. That naturally led into the lubrication-free co-axial escapement invented by Daniels (pictured above), which Roger delves into in a satisfyingly detailed manner, like comparing the sliding friction of a lever escapement against the tangential impulse of the co-axial. Fortunately, the entire proceedings were recorded and are now available online:  

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