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 chronography (recording the passage of time)

drum chronograph

Airy Transit Circle Chronograph, 1854

An astronomer making a star map takes two measurements: the angle at which the telescope is positioned to see the star cross the meridian and the time at which this happens. Traditionally the second measurement was estimated by listening to a clock facing the astronomer. With Airy's chronograph, the time was recorded electrically by tapping a key on the eyepiece of the transit circle.
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updated Thu. March 23, 2017

With a diameter of 40 mm, this steel chronograph houses a self-winding mechanical chronograph movement. Its silvered stamped barleycorn dial and its handsome blued-steel hands make an elegantly contrasting background to the moonphase display.
Meanwhile, Norton's all-new SG6 motorcycle, targeting success in this year's Isle of Man T.T., inspires 200 special versions of the new Bremont Norton chronograph. Each watch will feature a 43mm polished steel case, numerals inspired by those seen on ...
The bold and sophisticated AGL quartz series, with Swiss Ronda quartz and 5040B movements - features a chronograph, tachymeter, and big date at 12 o'clock.
A tourbillon chronograph has somewhat of a dynamic dualism. On one side it is a watch dedicated to precision, with the tourbillon even trying to eliminate the effects of the gravity of the earth on the timekeeping mechanism.
This Heuer Chronograph, Used to Test Lotus Speedometers in 1968, Can Be Yours. Buy this fantastic Autavia from the original owner, who used it as a factory quality technician for Lotus Cars.
While they have the option, not all Richard Mille's carbon watches come with a colored case as they decided to show off their record-breaking split-second chronograph with tourbillon weighing only an astonishing 38 grams (strap included), in the ...
This year, the Royal Oak Chronograph will celebrate its 20th anniversary, and in honour of the occasion, Audemars Piguet is unveiling seven brand new pieces in the series.
WatchTime April 2017 Issue The March-April 2017 issue of WatchTime is on newsstands now (and also available in our online shop), featuring reviews of the Tudor Black Bay Bronze, Omega Seamaster Planet Ocean Chronograph, and TAG Heuer Monza; ...
In short, increasing the precision in the time measurement increases the uncertainty in the energy at that point. Since energy and mass are interchangeable, this is the same as creating a virtual mass.
The Vacheron Constantin Overseas Chronograph is probably the most sportive model by the brand. Vacheron Constantin launched the Overseas collection in 1996, adding the chronograph model in 1999. In many ways it is the spiritual successor of the "222", ...
A brushed slate gray dial ups the visual ante, joined by three chronograph sub-dials, copper color-plated hour markers, a date indicator located at six o'clock, and a robust winding crown.
Being a horology nerd, I know that the chronograph is one of the most important cultural artifacts and that it has been continually improved thanks to competition.
The chronograph, with a 30-minute counter at 3 o'clock and 12-hour counter at 6 o'clock, as well as the other timekeeping functions, are powered by the mechanical, self-winding Caliber RW5010 (based on the La Joux-Perret 8601), which is visible through ...
Presented on January 10, 1969, it was to be the first automatic chronograph ever. The legendary movement took seven years to make.
Being instruments, tools, most chronographs lead a dynamic life, or they at least want to give the impression that they do.
It's about time, Mercedes. The swoopy Mercedes-Benz CLS-Class remains one of the oldest cars in its lineup, going without an update since 2014 and a full redesign since 2011.
Talking more about their men's diamond watch, one of the representatives of the store stated, "This Chronograph Oversized Men's Black Diamond Watch by Luxurman in Black stainless steel showcases 3 carats of sparkling black diamonds.
Range Rover and Zenith are back together for another collaborative watch, building on the popular Zenith El Primero Range Rover release from last year.
Clockwise from top left: Runwell sport chronograph ($925); Runwell turntable, limited edition ($2,500); Runwell turntable ($2,500); Large carryall ($1,295).
rebel, a Swiss made Automatic Chronograph timepiece, limited to 750 Pieces. Assembled by hand from the finest materials. We've already received samples from the factory, and they all look and feel flawless and function perfectly.
More and more owners of shiny new Rolex watches - whether stainless steel, yellow gold or platinum - are paying thousands of dollars more to turn their luxury timepieces jet black.
The collection comprises three models: the Classic Fusion Chronograph Italia Independent titanium, the Classic Fusion Chronograph Italia Independent ceramic and the Classic Fusion Chronograph Italia Independent King Gold. All three models have a ...
Precise chronograph function has always been one of the major selling points of Seiko watches. In addition to the large calendar aperture and 24-hour display, the 1/5 second chronograph function can be measured up to one hour. Moreover, the clear index ...
But before being connected, one of the brand's key strengths was and still is the chronograph. Let's have another look at some of the watchmaker's recent developments in this sector, and in particular the superb TAG Heuer Carrera Heuer-02T Automatic ...
Two of them are obviously present on the right side of the watch and control the chronograph functions. The ones on the left are actually integrated into the famous case design.
In a recent interview, Biver revealed his plans for the future: On March 22 at Baselworld, Zenith will present a new chronograph movement, called El Primero 21, with 1/100th-second timing. RB: Mr. Biver, at the beginning of January you personally took ...
When Jean-Claude Biver created the Hublot Big Bang, he not only introduced us to the "Art of Fusion" but in the process also created an icon.
Why is the chronograph so popular? Perhaps it is the fact that for once, we feel that we can control time when we operate a chronograph. Designed to measure elapsed time, they became a wearable tool for anybody who needs this professionally or enjoys ...
Between the new Royal Oak Perpetual calendar in ceramic and celebrating the 20th anniversary of the Royal Oak Chronograph, there was another spectacular new Royal Oak on the scene: The Extra Thin in yellow gold.
It's not as high-tech as a full "rattrapante" (split-seconds) chronograph. Nor is it the most affordable vintage chronograph out there (selling for at $5,900 on Yet this functionality gives it "a leg up" over other similar watches ...
Even today is this groundbreaking chronograph still the watch of choice of many people professionally involved in the world of exclusive cars and high-speed racing.
Among the collection is the MKII chronograph, a new white-dialled counterpart to the existing Bremont Jaguar range, incorporating very similar design features to the MKII black dial, but with a new internal tachymeter dial ring which can be used to ...
Few watch brands are better known for chronographs than TAG Heuer. The first ones appeared in the company's catalog in 1882; they were followed by a parade of technically innovative chronographs that continues to this day. Here are seven highlights ...
Did the Miami International boat Show put you into a boating spirit? Then, of course, a Regatta Chronograph is a must-have watch.
A great wristwatch is now an essential accessory for any stylish man but it wasn't always the way. Wristwatches were even dismissed as a "silly ass fad" in the New York Times in 1916.
Force India's new and improved VJM10 F1 racecar's got nothing on its new and improved Team Principal, who was spotted wearing his bejewelled Audemars Piguet Royal Oak chronograph at the unveiling of Force India's 2017 car. The king of good times ...
As we mentioned in our recent coverage of the new Heritage Pilot Extra Special Chronograph in bronze, Zenith has been on a bit of a roll with its new 2017 releases.
First released in 2015, that limited-edition piece harked back to a much older watch that "while not a literal translation of the 1950s reference 6087, was deeply inspired by this final manually-wound Vacheron chronograph of the vintage era," says ...
Patek Philippe Ref. 2499 2nd Series In the world of vintage watches, Patek Philippe's chronographs with perpetual calendars occupy a category of their own.
Two years ago, TAG Heuer wiped the slate clean for its popular Carrera watch lineup with the release of the controversial Carrera 01 chronograph. The skeletonized chronograph was quite the departure from the classical-minded Carreras from yore, ...
Preparing for next month's Baselworld 2017, Tag Heuer reimagined its signature Carrera Heuer-01 Skeleton Manufacture Chronograph watch. Launched in 2015, the compact, sports piece tagged under $5,000 - quite a rarity for the world of high-end ...
Celebrating its 20th anniversary in style, the Royal Oak Chronograph by Audemars Piguet comes with several changes and improvements.
The Richard Mille RM 50-03 McLaren F1 Split-Seconds Tourbillon Chronograph weighs 40 grams (1.41 ounces), which the watchmaker says makes it the lightest mechanical chronograph ever on the market. The sheer lightness is due to the use of ultra-light ...
In this sentiment, Zenith created the Pilot Extra Special Chronograph, which will be part of their Heritage Collection. The conquest of the skies is very much part of Zenith's brand identity as it was among the very first to assist the aviation ...
Audemars Piguet celebrated the 20th anniversary of the chronograph version of the famed Royal Oak. Still housed in its signature octagonal case with integrated bracelet, the brand celebrated by introducing a few new varieties.
The Invicta Subaqua Chronograph Tachymeter 200M 0924 Men's Watch is a member of the Invicta Subaqua family, engineered by experts to make it the Hummer of the watch world.
Since the invention of the chronograph more than 200 years ago, very little has changed as even a cursory glance of the dial of Moinet's Compteur de Tierces illustrates.
This specific watch, the M1-Woodward Chronograph is a tribute to the Detroit's Woodward Avenue. On the caseback, there's an "M-1" road sign engraved to represent the famous sign in Detroit.