Thursday, March 21, 2013

Who Invented the Chronograph?

So, just who invented the chronograph?  It would seem that perhaps it was Louis Moinet -

And in their own words -
Courtesy of Louis Moinet
 Louis Moinet invented the chronograph! Today, 21st March 2013, the Louis Moinet brand has brought together the past and present to write a new page in the history of horology!
Courtesy of Louis Moinet
In 1816, Louis Moinet designed, developed and produced the compteur de tierces, a chronograph that was technically well ahead of its time.
Courtesy of Louis Moinet
With a count of 216,000 vibrations per hour (30 Hz), it could measure 1/60 of a second and was thus by far the most precise instrument of its period. Another historical achievement that places him among the great contributors to modern watchmaking and the father of high-frequency time measurement.
Courtesy of Louis Moinet
 MOVEMENT   Full plates between four pillars, barrel and fusee
Ruby and steel cylinder escapement
Foliot balance with platinum adjustment weights
30-tooth escape-wheel
Flat balance spring with seven coils
Six pierced ruby bearings with endstones making a total of 13 jewels with the ruby cylinder
Made in gilt and frosted brass

216,000 vibrations an hour, 30Hz

Diameter 57.7mm
Height: 9mm
Signed on the upper plate: Louis Moinet

More than 30 hours

State of wind indicator visible through an aperture in the dust cover

Silver with a rim around the bezel and caseback

Bezel with a bayonet fixture
Hinged dust cover, locked by a threaded stud
Four-part semi-bassine case with flat caseband
Four hallmarks on the dust cover: 1. Association des Orfèvres de Paris (goldsmith’s guild); 2. Master’s mark; 3. Second rooster (Ag 900); 4. Guarantee No 815.

Silvered and frosted metal, signed Louis Moinet

Three subdials on the face:
Top left: 60-minute counter
Top right: 60-second counter
Bottom centre: 24-hour counter

Slender, counterpoised centre hand for the 60ths of a second

Two identical hands for the seconds and minutes counters
An open-tip hand for the hours
All the hands are in blued steel

At 12 o'clock: button to start and stop the chronograph

At 11 o'clock: button to return the 1/60 seconds hand to zero.

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