Differences between mechanical watch and quartz watch

Mechanical watch features

1. Mechanical watch works unlike quarts watch, its second hand keeps running.

2. Mechanical watch’s inconsistent helical movement causes decreasing  time accuracy. Usually it's 15-30 seconds/day. The minimum errors will be 4-5 seconds/day.

3. High exquisite technologies and easy to use. After winding up , the watch can work for more than 36 hours.

4. A mechanical watch can be used for lifelong, if it maintains well.

5. Compared with quartz watch, mechanical watch is thicker.

Quartz watch features

1. Quartz watch second hand ticks every grids, it has high accuracy, may be about 15 seconds errors/month.

2. Easy assembling, because the movement uses integrated circuit that makes simple movement structure.

3. Easy to use, no need wind up. One battery keeps 2-3 years, and lithium battery can be used for 7-8 years.

4. For a same style watch, quarts watch is more inexpensive than mechanical watch. Unless those watch with famous brand and expensive materials, like gold or diamond, they are more expensive than mechanical watches.

Conclusions:

1. Mechanical watch needs winding up, but quarts watch don't need.

2. Mechanical watch has thicker case, but quarts watch case can be very thin.

3. Automatics is sign for mechanical watch, Quartz is for quartz watch.

4. Mechanical watch has 5-15 seconds error each day, but quarts watch time error is within 0.5 seconds each day.

GREEN VIEW E-paper watch firstly shows on Hong Kong Watch & Clock Fair

Next generation watch comes true
The 31st Hong Kong Watch & Clock Fair will be held from 5-9 September, 2012, at the Hong Kong Convention and Exhibition Centre (HKCEC). Lots of international brands and watch parades will show the latest models in fashion presentations. Transmart Electronics is also invited to join the fair with its own GREEN VIEW brand.

Stylish curved design
GREEN VIEW is a new brand created by Transmart, based on e-paper features and technology promotes environment protection concept. Transmart made innovations to embed E Ink display, a new material, into watch, called e-paper watch. Unlike traditional mechanical watches or quarts watches, e-paper watch has many fancy features. First, by utilizing E Ink display flexible property, GREEN VIEW firstly achieves dial, surface and movement synchronously curved, it enables your wrist wear it perfectly.

Watch more conveniently
Wide viewing angles up to 180° is another feature, your time is seen from every angle without limitation, while LED or LCD display has at most 150°viewing angles. No backlight is required as e-paper displays by reflecting natural light, providing you paper-like reading experience. In addition, you can watch your time even in sunlight.

We are pleased to invite you visit our booth and experience stylish GREEN VIEW E Ink display wrist watch.
Date: 5-9/9/2012
Booth: 3B-C39, Hall 3, Hong Kong Convention and Exhibition Centre

What is a Mechanical Watch?

Mechanical watch is a self-winding watch. It uses a mainspring that turns gears to move so as to transfer force to balance wheel (make a “ticking” sound). It’s exactly the mechanical watch inconsistent helical movement that causes decreasing time accuracy. The accuracy is also affected by temperature, places, parts abrading and some other factors. Generally speaking, it is normal for a mechanical watch with 15~30 second errors in a day. The minimum errors will be 4-5 second.

Mechanical watches stand for exquisite technologies created by a German locksmith whose name is Peter Heinlein. He succeeded in inventing first spring powered mechanical watch in Nuremburg.

It’s very common to maintain mechanical watches, which is often caused by inflow water and crash. You’d better avoid watchcase inflowing water, especially seawater, because water has great destructive force to make machinery corrosion. The automatic watches can be used for life if maintained well. That’s how the name “perpetual watch” comes.

Now mechanical watch becomes not only symbol of refinement & sophistication but also status of a gentleman, it's more popular than quartz watch.

How to Identify a fake watch

As we all know, counterfeit watches are everywhere. Especially global Top famous brands,such as Rolex,chanel,Cartier etc. which causes much loss for those people who want to buy the genuine watches, but offered fake one.Today, I would like to share with you how to identify a fake watch.

1.Check the face of the watch. A fake often will resemble the original, but the fake will have some minor defects such as smudges or a different style of hour and minute hands.

 

2.Locate the Case Reference Number or Serial Number on the watch. The number should be clear cut. Most high quality watch makers will diamond etch these numbers onto the watch. Replica watches will have sand blasted numbers which are less clear.

                           
3.Look at the back plate. It should be free from defects. The etching should be clear. Some high quality watches will have holograms on the back plate. Contact a reputable local jeweler to find out if the watch you are purchasing should have a hologram.                                 

  

4.Notice the spelling of all words on the watch. Original watches will have all of the words spelled correctly. Keep in mind that spellings may vary slightly if you are buying a foreign brand watch.

5.Watch the movement of the watch hands. A high quality watch will have smooth movement. Fake watches will have hands that jerk when they move so that each tick will be noticeable.

6.Focus on the price. Replica watches are a fraction of the cost of original watches. A deal that seems too good to be true probably is. If the watch is real and the price is extremely low, it may be genuine, but you may be the recipient of stolen goods.

 

Tips & Warnings

• The best way to ensure that you are buying an original watch is to buy your watch from a reputable dealer. 
• An original will come in a company inscribed box complete with paper work that guarantees the authenticity of the watch. In most cases, a warranty and repair information is included in the information. 
• Research the particular watch you want to purchase. Keep a picture of the watch and a list of the features with you when you are shopping. Compare the features and look of any watch to the original.

 

What's e-ink watch

E-Ink watch is a new kind watch that uses E-ink display. E-ink technology is generally well known for its use in electronic book readers such as the Kindle or Sony Reader and e-ink watches use this technology in their displays. It uses very little power to provide a high contrast display, twice the contrast of LCD displays in fact, the display can also be viewed from a much greater angle almost 180 degree, unlike similar displays such as LCD or LED. It's called E-ink because the high contrast legibility makes it similar to paper.

You may have come across a couple of terms, E-Ink, EPD and E-paper. What are the differences between E-ink watch and E-paper and EPD watch? Well, actually, they are the same thing! Both EPD and E-paper stands for Electronic Paper Display, and is the generic term for displays using the E-Ink technology. Featuring in innovative curved surface,high contrast,sunlight-readable,ultra-low power.E-ink displays are also thin and flexible and can be of virtually any size and shape which gives watch manufacturers the opportunity to come up with some unique designs.

E Ink, or EPD watches, are still only produced by a limited numbers of manufacturers.In 2005,Seiko was the first to demonstrate a commercial EPD watch back in 2005, and in 2010 announced the Future Now range, a technologically much-improved EInk watch with higher resolution and an all-round better display, with limited edition. After this, Phosphor,Pebble,GREEN VIEW launched their designed E-Ink,or E-Paper watch.

E-ink displays are aimed to look like printed pages, with a natural high contrast between black and white. It has exclusive ability to switch the displays, meaning you can either have black letters or numbers on a white background or white letters and numbers on a black background for your own preference.

Previous developments in watch displays saw the replacement of watch hands; hour hand, minute hand and second hand with an electronic digital display. First to come was the LED watch display, followed closely by the LCD watch display. Now we have the E-ink or EPD watches, resulting in radical new watch designs as you can see.

E-Ink introduction

E-Ink - a short history

E-Ink is a registered trademark of the E-Ink corporation, a company formed in order to commercially exploit research carried out at the Massachusetts Institute for Technology the late 1990s.
Electronic paper and electronic ink would have seemed like science fiction ten or fifteen years ago, but now the technology is not only a reality, it is a developing technology which is now viable for commercial mass-production.

What is E-Ink?

Electronic paper has been something of a holy grail in technology - a display that can show a digital image and in doing so resemble ink on paper - a dynamic hard copy, if you like! E-Ink is some way ahead of the pack with this technology, which they have already licensed to a large range of devices on the market, best-known of which is probably Amazon's wildly successful Kindle ebook reader and, of course, E-paper watches.
E-Ink in many respects could replace the liquid crystal display on any digital device with a crystal clear on-screen display, that has a similar contrast to paper and is therefore much easier on the eyes. It also provides a more accessible form of digital readout, especially for those people who would previously not have considered reading ebooks due to the unfamiliarity of reading from an electronic display. Oh, and it looks extremely cool too!

Scheme of an electrophoretic display

How does E-Ink work?

E-Ink displays contains millions of tiny microcapsules which float in a fluid on your E-Ink screen. Some of these are white and have a positive charge, others are black and have a negative charge. When a negative electrical charge is applied, the white capsules rise to the top of the fluid. Of course, the opposite is true - applying a positive electrical field brings the black microcapsules floating to the top. So each of the thousands of pixels on your E Ink watch can be made either black or white (or actually a shade of gray in newer models) and in this way form a picture of anything the manufacturer wants!
It should be noted that E-Ink displays have at least one disadvantage - the change in states of the pixels can take at least a second to happen, so pages refresh quite slowly. Currently the technology certainly could not be used to display animation for instance. However this downside is not really important for devices such as E-Ink watches or ebook readers. After all, the time only has to refresh once a second, and as for ebooks, well, how long does it take to turn the page of a real book.
So that's E-Ink in a nutshell. Or on the face of a watch! No doubt the technology will be progressing further - colour displays are likely to be the next major development, and perhaps faster refresh times. In the meantime, E-paper watches are now an affordable item - the perfect gift for the geek who has everything!

Electronic paper

Electronic paper, e-paper and electronic ink are display technologies which are designed to mimic the appearance of ordinary ink on paper. Unlike conventional backlit flat panel displays which emit light, electronic paper displays reflect light like ordinary paper. Many of the technologies can hold static text and images indefinitely without using electricity, while allowing images to be changed later. Flexible electronic paper uses plastic substrates and plastic electronics for the display backplane.
Electronic paper display (EPD) is often considered to be more comfortable to read than conventional displays. This is due to the stable image, which has no need to be refreshed constantly and has a wider viewing angle. An ideal e-paper display can be read in direct sunlight without the image appearing to fade. The contrast ratio in available displays as of 2008 might be described as similar to that of newspaper, though newly-developed displays are slightly better. There is ongoing competition among manufacturers to provide full-color ability. The first flexible EPD for consumers will be available in Europe in April 2012.

Applications: electronic pricing labels in retail shops, and digital signage, time tables at bus stations, electronic billboards, mobile phone displays, and e-readers able to display digital versions of books and e-paper magazines. Electronic paper should not be confused with digital paper, which is a pad to create handwritten digital documents with a digital pen.

Technologies
1.Gyricon Electronic paper was first developed in the 1970s by Nick Sheridon at Xerox's Palo Alto Research Center. The first electronic paper, called Gyricon, consisted of polyethylene spheres between 75 and 106 micrometres across. Each sphere is a janus particle composed of negatively charged black plastic on one side and positively charged white plastic on the other (each bead is thus a dipole).[8] The spheres are embedded in a transparent silicone sheet, with each sphere suspended in a bubble of oil so that they can rotate freely. The polarity of the voltage applied to each pair of electrodes then determines whether the white or black side is face-up, thus giving the pixel a white or black appearance.[9] At the FPD 2008 exhibition, Japanese company Soken demonstrated a wall with electronic wall-paper using this technology.
2.Electrophoretic Appearance of pixelsIn the simplest implementation of an electrophoretic display, titanium dioxide (titania) particles approximately one micrometer in diameter are dispersed in a hydrocarbon oil. A dark-colored dye is also added to the oil, along with surfactants and charging agents that cause the particles to take on an electric charge. This mixture is placed between two parallel, conductive plates separated by a gap of 10 to 100 micrometres. When a voltage is applied across the two plates, the particles will migrate electrophoretically to the plate bearing the opposite charge from that on the particles. When the particles are located at the front (viewing) side of the display, it appears white, because light is scattered back to the viewer by the high-index titania particles. When the particles are located at the rear side of the display, it appears dark, because the incident light is absorbed by the colored dye. If the rear electrode is divided into a number of small picture elements (pixels), then an image can be formed by applying the appropriate voltage to each region of the display to create a pattern of reflecting and absorbing regions.

Electrophoretic displays are considered prime examples of the electronic paper category, because of their paper-like appearance and low power consumption.
Examples of commercial electrophoretic displays include the high-resolution active matrix displays used in the Amazon Kindle, Barnes & Noble Nook, Sony Librie, Sony Reader, Kobo eReader and iRex iLiad e-readers. These displays are constructed from an electrophoretic imaging film manufactured by E Ink Corporation.

Scheme of an electrophoretic display

Scheme of an electrophoretic display using color filters

The EPD technology has been developed also by Sipix and Bridgestone/Delta. SiPix Imaging Inc. is now part of AU Optronics Corp, one of the three largest LCD-panel manufacturers in the world. Other than E-Ink's 0.04mm-diameter micro-capsule structure, Sipix's is 0.15mm-diameter microcup. On the other side, Bridgestone Corp.'s Advanced Materials Division has been cooperating with Delta Optoelectronics Inc. in developing the Quick Response Liquid Powder Display (QR-LPD) technology. The Motorola MOTOFONE F3 was the first mobile phone to use the technology, in an effort to help eliminate glare from direct sunlight during outdoor use.
Electrophoretic displays can be manufactured using the Electronics on Plastic by Laser Release (EPLaR) process developed by Philips Research to enable existing AM-LCD manufacturing plants to create flexible plastic displays.
Electrophoretic display
Scheme of an electrophoretic display.
Scheme of an electrophoretic display using color filters.An electrophoretic display forms visible images by rearranging charged pigment particles using an applied electric field
Macro photograph of Kindle 3 screen; microcapsules are evident at full sizeIn the 1990s another type of electronic paper was invented by Joseph Jacobson, who later co-founded the E Ink Corporation which formed a partnership with Philips Components two years later to develop and market the technology. In 2005, Philips sold the electronic paper business as well as its related patents to Prime View International. This used tiny microcapsules filled with electrically charged white particles suspended in a colored oil. In early versions, the underlying circuitry controlled whether the white particles were at the top of the capsule (so it looked white to the viewer) or at the bottom of the capsule (so the viewer saw the color of the oil). This was essentially a reintroduction of the well-known electrophoretic display technology, but the use of microcapsules allowed the display to be used on flexible plastic sheets instead of glass.
One early version of electronic paper consists of a sheet of very small transparent capsules, each about 40 micrometres across. Each capsule contains an oily solution containing black dye (the electronic ink), with numerous white titanium dioxide particles suspended within. The particles are slightly negatively charged, and each one is naturally white.
The microcapsules are held in a layer of liquid polymer, sandwiched between two arrays of electrodes, the upper of which is made transparent. The two arrays are aligned so that the sheet is divided into pixels, which each pixel corresponding to a pair of electrodes situated either side of the sheet. The sheet is laminated with transparent plastic for protection, resulting in an overall thickness of 80 micrometres, or twice that of ordinary paper.
The network of electrodes is connected to display circuitry, which turns the electronic ink 'on' and 'off' at specific pixels by applying a voltage to specific pairs of electrodes. Applying a negative charge to the surface electrode repels the particles to the bottom of local capsules, forcing the black dye to the surface and giving the pixel a black appearance. Reversing the voltage has the opposite effect - the particles are forced to the surface, giving the pixel a white appearance. A more recent incarnation of this concept requires only one layer of electrodes beneath the microcapsules.