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Elegant stylish wristwatch named Akribos XXIV Women's AK806SSBU Quartz Movement Watch with Light Blue Dial and Stainless Steel Bracel... This watch value is (38.39, 'USD').
Recognizable brand who produce this top level wristwatch is Akribos XXIV. This special model of female wrist watch is diamond in the world of womens watches as well as the owner who wears it and know this wrist watch buys once in a lifetime.This womens watch is a mirror of beauty and modernity and it is located in the head storefronts of producer. Women customers love it. . Color of dress wristwatch is Stainless Steel/Blue.Item characteristic are: Akribos XXIV Women's AK806SSBU Quartz Movement Watch with Light Blue Dial and Stainless Steel Bracelet. Components of this watch are made from: Dial Window Material Type: Mineral | Case Material: Stainless steel | Band Material: Stainless steel | Bezel Material: Stainless steel. See the current offer,mouse click on button Click To Order and buy this article from amazon.com..
Article Akribos XXIV Women's AK806SSBU Quartz Movement Watch with Light Blue Dial and Stainless Steel Bracel.. has a rating of 4.5 based on 9 customer marks
The mechanical time clock, which uses a mechanical mechanism for measuring time, in contrast to the contemporary quartz clock operating in an electronic format. It is driven by a spring (called basic bus), which should be regularly wound. His force is transmitted by a series of tools to drive the balance wheel, a weighted wheel which oscillates back and forth at a constant speed. The device is called an escapement wheel guard release to move forward a small amount with each swing of the balance wheel, moving the hands of guards in advance at a constant speed. It makes a "ticking" sound characteristic of all mechanical watches. Mechanical clocks developed in Europe in the 17th century from spring powered clocks, which appeared in the 15th century.Mechanical watches are usually not as accurate as modern electronic quartz watches, and require regular cleaning by a qualified watchmaker. Since 1970, the quartz watches took over the majority of the market watch and mechanical watches are now mostly high-end product purchased for aesthetic reasons, respect for their fine workmanship, or as a status symbol. MechanismThe internal clock mechanism, except the face and hands, is called movement. All mechanical watches these five components:A leader that stores mechanical energy to drive the hour.Gear train, which is called going train, which has a dual function of transmission power leader in the balance wheel and adding swings in the balance wheel to get a unit of seconds, minutes and urah.Poseben part of the gear train, called the keyless work allows user to the termination of a leader and provides hands moved to set the time.The balance wheel, which oscillates back and forth.Each swing of the balance wheel carefully takes the same amount of time. This is a measurement of the time element of the clock.Escapement mechanism, which has a dual function management balance wheel vibration by giving it a boost with every swing, and makes gear watch for promotion or "escape" by a certain amount with each swing. Periodically stopping the train moved from the emigration makes a "ticking" sound mechanical watch.Pointing usually a traditional clock face with rotating hands to show the time in readable form.Additional features per hour in addition to the basic timing that is traditionally called complications. Mechanical watches can have these complications:Automatic winding or self-liquidation, in order to eliminate the need for termination of an hour, this machine winds spearhead watch automatically using natural template for the wrist, with a swivel mechanism of weight.Calendar displays date and often working day, month and year. Simple calendar watches do not take into account the different lengths of months, require the user to reset the date five times a year, but perpetual calendar watches account for this, and even leap years. Annual calendar does not do a leap year correction, it is necessary to reset the date 1 March every fourth year.Alarm bell or buzzer, which can be set to go off at a specific time.-Hour Chronograph with additional stopwatch funkcij.Gumbi for example, start and stop second hand and reset to zero, and usually more subdials show the elapsed time in larger units.Hacking feature is available on military watches, the mechanism that stops the other hand, while the clock is set.This allows the clock to be synchronized to the exact second. This is now a very common phenomenon in many hours.Moon phase dial shows the phase of the moon-face moon on a rotating disk.Indicator wind power reserve indicator located mostly on automatic watches for subdial that displays how much power is left in the drive spring, usually in the hours left to run.Repeater-watch that chimes clock audibly by pressing a button. This rare complication was originally used before artificial lighting to check the time in the dark. These complex mechanisms are now found only as a novelty in an extremely expensive luxury watches.Tourbillon-expensive property that was originally designed to look more accurate, but it is now simply a demonstration of watchmaking virtuosity. In the normal clock balance wheel oscillates at different rates due to gravitational bias, when the time in different positions, causing inaccuracies. The tourbillon, the balance wheel in a rotating cage installed, so that experienced all the same positions. The mechanism is usually exposed on the face to show. How it works The mechanical watch is a mature technology, and the most common mechanisms of watches have the same parts and work the same way. Guiding force and movement work The driving force which drives the clock, a spiral strip of spring steel, inside a cylindrical barrel, the outer end of the mainspring is attached to the barrel. Barrel has gear teeth around the outside that turn the center wheel once per hour - this wheel has a shaft that goes through the dial.On the trunk side is a top pinion connected with friction fit (allowing to slide in the determination of the hand), and minutes to the bound to the cannon pinion. Cannon pinion drives a small gear 12-to-1 reduction appoint motion work that turns hour wheel and hand once for every 12 revolutions per minute hand.Wheel train Centre wheel driven pinion of the third wheel and the third wheel pinion drives the fourth wheel. In the hours by seconds in a subsidiary seconds dial, usually located above the town of 6:00, the fourth wheel geared to rotate once per minute, and the other side is attached directly to the arbor of this wheel .. HatcheriesThe fourth wheel also drives the escape wheel lever escapement. Teeth rental evacuation alternately catch on two fingers called pallets on the hands of the pallet lever, which rocks back and forth. The other end of the lever has a fork which engages on the upright impulse pin on the balance wheel shaft. Every time the balance wheel swings through its center position, it unlocks the lever, which releases one tooth of the escape wheel, allowing the wheel guard to advance by a fixed amount, moving the hands naprej.Kot escape wheel turns, its tooth It pushes against the arm, which gives the balance wheel short push, it will still oscillates back and forth. Balance wheelThe balance wheel keeps time for the watch. It consists of a weighted wheel which rotates back and forth, which is returned to its center position fine spiral spring, a spring balance or "hair spring".Mass balance wheel combines with the stiffness of the springs precisely control the period of each swing or "network" wheels. Most of the time balance wheel oscillates 5, 6, 8, or 10 times per second. This means 2,5, 3, 4 and 5 Hz respectively, or 18000, 21600, 28800 and 36000 vibrations per hour or VPH. In most of the hours of the control lever in the balance spring which is used to set the speed of the clock. It has two curb pins which embrace the last turn of the spring, and can be slid up or down in the spring for the control of its effective length. Keyless workA separate set of tools called keyless work winds leader when the crown is rotated, and when the crown is pulled out a short distance allow the hands to prove to set the hour. The stem is attached to the crown of a tool called a clutch or castle wheel, with two rings of teeth which protrude axially from the ends. When the stem is pressed, the external teeth rotate the latch at the top of the leader drum, which rotates the shaft that the inner end of the mainspring is attached to the winding leader tighter around the shaft. Spring pin or click presses against the ratchet teeth, preventing the leader from odvijanja.Ko the stem is pulled out, the inner teeth of the castle wheel engage with a gear which turns minute bike. When the crown turned, the friction coupling of the cannon pinion allows the hands to be rotated.Center seconds If the seconds is coaxial with the minute and hour hands that pivots in the center of the dial, this arrangement is called "center seconds" or "sweep seconds" because the machinery seconds smears around minute track on the dial.Initially, the center seconds hands driven third wheel, sometimes through an intermediate ring with a toothing on the outer side of the upper plate. This type of drive seconds hand is called indirect center seconds. Since the gear outside the plates, he added thickness of the movement, and because the rotation of the third wheel is ready to turn his hand seconds once a minute, it was with seconds Fluttering movement.In 1948, Zenith introduced the hour by train redesigned gearbox, which was the fourth wheel in the center of the movement, and you can drive center seconds hand directly. Minute bike that was previously in the heart of the movement, was moved off center and drove minute bike indirectly. Each flies the indirect gearing hides relatively slow movement of the minute hand. This renewal brought the whole train between the clutch plates and allowed a thinner movement. Watch GemsJewel bearings were invented and introduced in watches Nicolas Fatio (or Facio) and Pierre de Duillier and Jacob Debaufre around 1702 in order to reduce friction. They did not become widely used until the mid-19th stoletja.Do the 20th century have been ground from tiny pieces of natural pearls. Hours often had garnet, quartz, or even glass beads; only uses premium watches sapphire, ruby or diamond. In 1902, the process of growing synthetic sapphire crystal has invented what jewels much cheaper. Jewels in modern watches are all synthetic sapphire or (usually), ruby, made from corundum (Al2O3), one of the hardest substances known.The only difference between sapphire and ruby, is that they were added to the various impurities, to change color; There is no difference in properties of the bearing. The advantage of using beads is that their ultrahard stain area smaller coefficient of friction with metal. The static coefficient of friction of the steel-on-steel is 0.58, while the sapphire-on-steel is 0.10 to 0.15. Why use Jewels dual purpose in an hour. Firstly, the reduced friction can increase accuracy. Friction in wheel bearings trains and depopulation caused by slight differences in pulses which are used in the balance wheel, which cause differences in the level of timekeeping. Low, predictable friction jewel surfaces reduces these differences. Secondly, it can increase the life of the bearings. In unjeweled bearing pivots bicycles Watch the rotation in the holes in the plates that support the movement. Sideways force that moves the long use causes more pressure and friction on the one hand opening. In some wheels, rotating shaft can wear his hole until the oval and the clock stops. TypesIn emigration, the jewels apply to parts that work with sliding friction:Pallets - These are angled rectangular surface on the lever that pushes against the teeth of the escape wheel. They are a major source of friction in the watch movement and was one of the first cities that have been used precious stones.Impulse pin - off center pin on the disc in the balance staff who pushed the lever fork, keep balance wheels in motion.For bearings used two different types:Hole jewels - This is a donut in the form of sleeve bearings are used to support the arbor (shaft) majority of the bicycles.Capstones or cap Pearls - When the arbor bicycle in a vertical position, the shoulder of the spindle rests on the side of the hole jewel, increases friction. This causes the rate of the clock to change when it is in different positions. So, in the bearings, wherein the friction is critical, such as pivots balance wheels are straight capstones added at each end of the arbor. When the arbor in a vertical position, its rounded end of which bears on the surface of the Capstone, reduction of friction. When usedNumber of jewels used in watch driving increased over the last 150 years, as jeweling grew less costly and time grew more precise. The only bearings that really need to be jewels in the watch are the ones in operating the train - the train gearbox that transmits power from leader barrel to balance the wheel - just because you are constantly under pressure from the drive vzmet.Kolesa, which prove to be hands (motion work) and calendar wheels are not under load, while those who wind leader (keyless work) is used so rarely that no significant wear. Friction has the greatest impact on wheels that move quickly so that benefit most from jewelling. So, the first mechanism jewels in watches is the balance wheel pivots, followed by depopulation. As they added more jeweled bearings have been used to the slower moving wheels and jewelling progressed up going to train al.Jewel has a 17 hour each way from the balance wheel to wheel center pivot bearing jewels, so it seemed "completely emblazoned" watch. The quality watches to minimize positional error, capstones were added to the lever and escape bearings, with 21 jewels. Even the leader barrel arbor was sometimes jewels, which total 23. When the self-winding watches were introduced in 1950, were the jewels more wheels in automatic winding mechanism, increasing the number to 25-27. "Jewel inflation" It is questionable whether the addition of gems in addition to those listed above really useful in an hour. It does not increase the precision, since the only wheels that have an impact on the balance wheel, those operating the train are already gems. Marine Chronometers, most accurate portable Hours, often only 7 gems. It also does not jeweling additional wheel bearings increases the life of the movement; As noted above, most other bikes do not get enough to wear them potrebujete.Vendar could watch the movement of the early 20th century has been standardized to the point that there was little difference between their mechanisms, in addition to quality workmanship. So watch manufacturers in the number of gems, one of the few metrics differentiating quality watches, big advertising point by listing visible on the face of the watch. Consumers with little else to go on, learned to equate more gems with more quality in an hour. Although initially this is a good measure of quality, it has given producers an incentive to increase the number of gem.Around the year 1960, this "jewel craze" reached new heights and producers made watches with 41, 53, 75 or even 100 jewels. Most of these additional gems are completely nonfunctional; Never touch moving parts and have been included only to increase the number of jewel. For example Waltham 100 jewel clock consists of the usual 17 jewel movement, with 83 tiny pieces of ruby installed around the automatic winding rotor.In 1974, the International Organization for Standardization (ISO) in collaboration with the Swiss watch industry standards organizations NIHS: Normes de l\'Industrie Suisse Horloger published standard, ISO 1112, which prohibits manufacturers from including such non-functional jewels in the jewel of the counts in advertising and sales literature. This would stop using completely nonfunctional gems. However, some experts say producers continue to inflate the number of hours their jewel by "upjeweling"; Adding functional jewels bearings on wheels that do not really need them, exploiting loopholes in ISO 1112.Primeri, involving the addition of capstones third and fourth wheel bearings, bearings jeweling minute and automatic winding ratchet pawls. Probably none of these accessories adds to the accuracy or longevity hour.World time Some fine mechanical watches will have a world time function, which is a city of the blade, as well as the clock bezel, which will rotate positions after the relative time zone.There are usually 27 places (corresponds to 24 major time zones) in place of the frame, starting with GMT / UTC:00:00 UTC - LondonUTC + 01: 00 - AmsterdamUTC + 01: 00 - BerlinUTC + 01: 00 - BrusselUTC + 01: 00 - ParisUTC + 02: 00 - Cairo *UTC + 03: 00 - MoscowUTC + 04: 00 - Abu Dhabi / DubaiUTC + 05: 00 - KarachiUTC + 06: 00 - DhakaUTC + 07: 00 - BangkokUTC + 08: 00 - Beijing / SingaporeUTC + 09: 00 - TokyoUTC + 10: 00 - SydneyUTC + 11: 00 - NoumeaUTC + 12: 00 - AucklandUTC + 13: 00 - SamoaUTC-10: 00 - HonoluluUTC-09: 00 - AnchorageUTC-08: 00 - Los Angeles / VancouverUTC-07: 00 - DenverUTC-06: 00 - ChicagoUTC-05: 00 - New York City / TorontoUTC-04: 00 - Caracas / Puerto RicoUTC-03: 00 - Buenos AiresUTC-02: 00 - South Georgia and the South Sandwich IslandsUTC-01: 00 - AzoresRemarks:. Venezuela switched to UTC-04: 30 from 30 December 2007. History Peter Henlein is often described as the inventor of the first pocket watches, the "Nuremberg Egg" in 1510, but it seems that this statement is that the invention of the 19th century and appears in old sources.By the quartz revolution 1960 were all watches mehansko.Zgodnje hours were terribly accurate; good can vary as much as 15 minutes per day. Modern precision (a few seconds per day) has not been achieved by any clock to 1760 when John Harrison created their marine chronometers.The accuracy has been achieved since 1854 first by Waltham Watch Company, through industrialization of the production process by the movement to achieve the necessary precision: they won the goldgold medal at the 1876 Philadelphia Centennial Exhibition with a lot of watches, taken at random out production lines, which indicates path to their peers in the US (eg Elgin Watch Company) and global watch industry.Mechanical watches are powered by a drive spring. Modern mechanical watches require the order of 1 microwatt of power on average. As a leader providing unequal power source (his steadily decreasing torque as the spring unwinds) hours from the beginning of the 16th century to the early 19th century it shows a chain driven by a wind that served to regulate torque leader in all its winding. Unfortunately, they were fusees very fragile, very easy to break, and the source of many problems, especially inaccuracy timekeeping when Fusee chain become loose or lost your speed by lack of maintenance.As new types of escapements have been created, which served to better isolate the source of the clock time, the balance spring, an hour can be built without wind and still be accurate.In the 18th century original verge escapement, which is needed for the wind was gradually replaced in the best of French watches with cylinder escapement, and British clocks duplex odseljevanja.Nato in the 19th century have been replaced by a lever escapement used almost exclusively ever since. Cheaper version leverage the pin lever escapement, patented in 1867 by Georges Frederic Roskopf used in inexpensive clocks to 1970thAs hand-wound mechanical watches became less popular and favored in 1970, the design and industrialists come out with an automatic watch movement. Given the need to mechanically wound-wound watch with pendant or levered setting, automatic clock does not need to be wound by a pendant; Simply turning the clock winds the clock automatically. The interior Automatic Watch houses swiveling metal or brass "plate", which rotates around its axis, when the clock is rocked horizontally.Currently there is only one manufacturer produces watch movements in the United States. RGM Watch Company in Mount Joy, PA is currently producing three in-house movement, the Caliber 801, peg 20 and the Pennsylvania Tourbillon. The movements are all hand-wound mechanical watches; Currently there are no Automatic Watch Movements, which in the United States.