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Horology S
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| Screw back |
A back that is able to be screwed into the case, as
opposed to watch backs that are screwed in through the use or small
screws or are snapped on. |
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| Screw-down Crown |
A crown that screws down into the case to make a watch
more water- and dust-resistant. |
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| Second Time-Zone Indicator |
An additional dial that can be set to another time zone. |
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| Shock Absorber |
Typically used on the balance pivots, allowing them
to shift slightly in their position during shocks without breaking
the pivots.
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| Shock
Resistant |
The ability to withstand an impact equal to a 3 foot
fall onto a wooden floor. |
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| Skeleton Watch |
A watch whose movement has had much of the material
for the plates, bridges, and sometimes even wheels and barrel removed
to expose more of the mechanism. |
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| Small Second |
Seconds displayed by a hand in a small subsidiary dial. |
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| Sonnerie |
A watch that sounds the time automatically; a petite
sonnerie chimes every hour, a grande sonnerie chimes every quarter-hour. |
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| Split-second Chronograph |
A chronograph that employs two chronograph second hands
to measure elapsed time as well as lap time. In other words, one chronograph
hand can be stopped while the other keeps ticking; you can then record
time and hit the catch-up button, and the stopped hand will catch
up to the next. Also known as rattrapante or doppelchronograph. |
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| Spotting |
Refer to Perlage |
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| Spring Bar |
A thin metal bar with spring loaded extensions
mounted between the lugs that attach a strap or bracelet to the case. |
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| Staybrite |
A commercial term denoting the rust-free qualities of stainless
steel and sometimes found stamped on the caseback. |
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| Stem |
The shaft that connects to the movement's winding mechanism.
The crown is fitted to the opposite end. |
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| Striking Watch |
A watch with an acoustic complication such as a minute
repeater or sonnerie that is struck on a gong. |
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| Sub-dial |
A small dial placed inside a watch's main dial. Sub-dials
often hold complications such as chronograph counters, an alarm indication,
or a second time-zone indicator. |
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| Swan's-neck Regulator |
A traditional form of micro-regulator that allows very
precise adjustment of the rate. It employs a screw for adjusting the
position of the regulator and a long, curved spring (shaped something
like a swan's neck) to hold the regulator firmly against the tip of
the screw. |
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| Sweep-second hand |
Refer to Central Second |
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| Swiss lever escapement |
It was designed that the lift is shared between the faces of the
escape-teeth and the pallet-stones. |
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| Swiss Made |
A Swiss Federal government ordinance dated 23rd December 1971 decrees
that "Swiss Made" can only be featured on a watch and
used in connection with its marketing if
- At least 50% of the components, by value, excluding costs of
assembly, are of Swiss manufacture.
- It was assembled in Switzerland.
- It was started up and regulated by its manufacturer in Switzerland.
- It is continuously subject to the legal obligation of technical
inspection in Switzerland.
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