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A chronograph can also aquire the Chronometer title, if it meets the set standards.
It would take until 1969 before the first self winding chronograph appears on the
market.
A
chronograph for divers is not the best application for this type of watch.
A chronograph module is placed on the
normal watch movement, and can be taken of entirely when servicing.
That is why a divers chronograph has round pushers, a screw on crown, and a
screw back case which is provided with rubber gasket-rings to keep water out.
Even fairly simple chronographs have a very complicated movement, but
there is always one step further.
The terms Chronograph and Chronometer are often used indiscriminately, although they
are two different types of watches.
If
you have ever seen a chronograph opened up, you might know what this is about.
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When the chronograph is activated by
pushing the top button, the central seconds hands starts moving.
Prices of hand"
chronographs start at about $100 and go up according to availability and complexity.
Military chronographs are
recognized by the easy to read, black dial and an inscription on the back indicating the
army unit.
With this simple type of chronograph a period
of 30 or 45 minutes can be measured.
The design of the dial of chronographs depends on the number of subsidiary dials.
The chronograph was invented by a Frenchman, named Rieussec, back in 1821.
In that year, two automatic chronographs were introduced on the Basel Watch Fair:
the Chronomat and the El Primero.
The Real Chronograph
Chronographs are watches that can meassure time in different ways.
Literally,
this was the only timepiece that bore the name Chronograph rightly.
Valuable As a rule, a chronograph is quite valuable.
When in the 1930's manufacturers started producing waterproof
watches, this know how was used in the production of chronographs shortly after.
According to this definition, Chrono-stop
watches like the one made by Technos are not real chronographs.
Since 1965 it is the official chronograph of
astronauts of NASA.
And shortly after developpers managed to protect the movement
of a watch against magnetical influences, the first anti-magnetic chronograph followed.
This means that the seconds are devided in tenths of a second
and not in fifths (or five-and-a-halfths) like the Chrono-matic and practically all the
other chronographs.
Technical Innovations The developpement of the chronograph folllowed the technical innovation of the
wrist watch very closely.
Flight Control So it were the military and sportsmen that used the first chronographs.
When the Swatch watch company started the production of affordable and
fashionable chrono's in early 1990, they sold like hot cakes, as were the later versions.
Some divers chronographs are fitted with an extra dial indicating the tides.
The Chronograph
It was strange enough, though, that it took many years before the technique of the self
winding movement was used in the production of chronographs.
Chronograph watches
Around 1910, the chronograph, also refered to as stopwatch, was introduced as a wrist
watch.
Today, wearing a chronograph is a matter of taste, rather than professional.
Chronoscope would be a more
accurate name for chronographs, since there is no real involved
anymore.
man chronograph production
There are chronographs that have, beside minute and hour
registers, displays for day and dat, and moon phase indication.
In 1933,
the firm Universal introduced the first waterproof chronograph to the public under the
name.
Engineers, pilots and naval officers are benefited by a chronograph with a slide rule
bezel.
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