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Sinn Uhren: Technology Glossaryacrylic glass. Glass- like product made from polyacrylic esters. It is highly break resistance and is resistant to weather and corrosion.
Enjoy the videos and music you love, upload original content, and share it all with friends, family, and the world on YouTube. Angling. Decorative processing of edge contours, particularly on the bridges and cocks of a high quality movement. During angling, a decorative bevelled edge is.
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Small scratches can easily be polished out. Distance of oscillation (swing or beat). The amplitude is the maximum angle of rotation of the balance between the point of equilibrium and one of the reversal points of the oscillation. The average amplitude values of most watch movements made today are between 2. As the lubricant ages, this value gradually falls.
DIAPAL Technology deals with this problem at the root, by dispensing with the need for oil altogether. Decorative processing of edge contours, particularly on the bridges and cocks of a high quality movement. During angling, a decorative bevelled edge is created (the edge is ‘angled’). Angling is a highly skilled finishing technique used instead of the conventional deburring/rounding of edge contours. Sensitive to magnetic field interference up to a certain level. Devices or equipment, the functions of which are protected from magnetic interference by the use of suitable materials and/or screening up to a specified level, are antimagnetic. When light hits a glass surface it splits in two: one part of the light is bounced back as a reflection, the other goes into the glass. Watch Cosmopolis Online Mic.
Reflections severely impair the readability of a watch; they reduce both the light permeability of the crystal and also the clarity of the image. Diffuse points of light and reflected images in non- antireflective glass can in some cases be more dominant than the dial itself. A very thin coating of a suitable translucent material is used to make glass anti- reflective. This coating is generally vapor deposited onto the glass in a vacuum. The splitting of the light mentioned above then takes place both on the surface of the glass and also on the surface of the thin anti- reflective layer. The light reflected from this layer overlaps with that from the glass itself. The layer needs to be thick enough for the light reflected from the different surfaces to cancel each other out through destructive interference.
Destructive interference, in simple terms, is when two opposing waves are offset so that the peak of one wave always coincides with a trough of the other, thereby canceling each other out. Such a displacement occurs because the light reflected from the surface of the glass has to travel slightly further than that from the surface of the coating to ensure overlapping. A further precondition for mutual cancellation is that both waves must have the same amplitude. Multiple layers with different types of coating and thicknesses are required to create an anti- reflective effect at different wavelengths (colours) of visible light. Sinn's sapphire crystals are always coated on both sides to ensure optimum readability.
Colorless anti- reflective coatings are used, created using a precision- controlled coating technique, to ensure that the dials show their true color. According to DIN, watches which do not stop when exposed to a magnetic field (see magnetism) and the accuracy of which does not exceed specified limits when exposed to a magnetic field may be described as antimagnetic. DIN guideline 8. 30. A/m (corresponds to 6 m.
T) (movement diameter larger than 2. The watch should also not stop when exposed to a magnetic field of this strength. Mechanical watches react to magnetic fields primarily due to the fact that they contain temperature- compensating hairsprings (see Nivarox). At Sinn, we offer additional magnetic field protection in some watches. Ar- Dehumidifying Technology.
Sinn technology to reduce ageing processes inside the watch. The Ar- Dehumidifying Technology is based on three technical elements: a drying capsule, EDR seals (Extreme Diffusion- Reducing) and a protective gas filling. See Sinn Technology Ar- Dehumidifying Technology. The balance, in combination with the hairspring, constitutes the oscillation system of a mechanical watch.
Balances nowadays are nearly always closed metallic wheels with two or three spokes. The balance spring is firmly fastened to the balance shaft. This allows the balance to execute a rotary oscillation which is ultimately responsible for the even running of the watch. The to- and- fro motion of the balance is translated by means of a small ruby pin (ellipse) into to- and- fro rocking of the anchor.
Within this rhythm the anchor, in turn, inhibits the anchor wheel and therefore the entire gear train of the watch (escapement). The balance is normally made from an alloy called "glucydur". This is a type of beryllium bronze.
This material considerably reduces the influence of temperature. The residual temperature error is compensated by the Nivarox spring. An older, historical type of balance is the screw balance.
This was first used in the form of the compensating balance which is split at two points to compensate the temperature error; it has a bi- metal construction. The split balance wheel creates the two balance "wings". The adjustment screws inserted on the sides were used to individually compensate the large temperature error of earlier steel balance springs and to carry out the basic adjustment of the movement. To compensate for the softening and lengthening of the balance spring as the temperature rose, the inertia of the balance was made obversely dependent upon the temperature.
The bi- metallic effect caused the two balance wings to bend inwards when the temperature increased. This reduced their inertia, mirroring the principle behind a figure skater lowering his arms while pirouetting to increase his speed of rotation. Monometallic balances fitted with side adjustment screws for the basic regulation of the oscillation duration are still valued today as means of upholding this watchmaking tradition. In homage to this tradition, balances in pocket watch calibres are fitted with side screws to give them a high moment of inertia and to create the characteristic 1.
Physical unit of pressure, i. Pa = 0,1 MPa. One bar corresponds roughly to the average atmospheric air pressure at sea level. Water (hydrostatic) pressure increases by approx. A watch is therefore subjected to one additional bar for every 1. N/cm²). The precise value depends on the location on Earth. The gravitational acceleration varies between 9. Watch Mike Tyson: Undisputed Truth Online Hitfix.
Taking the mean value (9. Black Hard Coating. A hard Ti. Al. CN (titanium- aluminium- carbonitrite) coating, applied using a so- called PVD process. This layer has a surface hardness of more than 2. HV. See Sinn Technology Black Hard Coating. Another word for a movement.
The term is usually used in connection with a numerical movement name such as ‘Calibre ETA 7. Unlike calibre information in weapons technology, in watchmaking the term ‘calibre’ has nothing to do with the size of the movement. Outer bezel with a special design to prevent it from being lost. Bezels are conventionally attached to the body of the case using a snap- in mechanism. If knocked, the ring can, in the worst case, become detached and the set time lost. Many our watches are therefore fitted with a safety system which overcomes this design weakness.
The captive safety bezel in the U1. See Sinn Technology: Captive Safety Bezel. A chronograph is a timepiece with a stop mechanism which can be used to time the length of a particular procedure. Conditions which movements must meet to fulfill the chronometer standard. Watches or movements with particularly accurate running, confirmed by an official certificate, are designated chronometers.
Chronometer movements have to be given a serial number to ensure that the certificate and the movement can be uniquely matched. Chronometer tests are currently carried out and documented almost exclusively by the C. O. S. C. (Contrôle Officiel Suisse des Chronomètres, an independent public- service organization in Switzerland).