Why do they use synthetic ruby?

Ruby is technically known corundum, and is a crystallized form of aluminum oxide (Al2O3).In pure form, corundum is white in color; trace impurities are added to change the color - to red in the case of rubies. It should also be noted that any other color of corundum (including clear) is known as sapphire.Ruby is used because it is an extremely hard and provides a slick surface for the wheel pivots (and other steel components) to operate on.In a mechanical watch, there is a constant force applied to the pivot of every wheel in the wheel train, which is applied by the wound-up mainspring..
Without any jewels, the steel wheel pivots would very quickly grind away the bridge and plate material until the wheels came out of alignment, and the movement would crash to a halt.In the inexpensive watch of yesteryear, the pivot holes may have been provided with hardened metal bushings.
Ruby is significantly better than steel in handling the forces involved, wearing long, and providing a nice low friction surface suitable for both high-load as well as high-speed motion. With modern production methods, they are cheap (~$0.02 each). And they look nice.
Also you can find some good watches with the real ruby,such as Rolex replica,Porsche Design replica,Richard Mille replica,Zenith replica,Hublot replica and Ferrari replica watches.

What is the difference between a movement, an ebauche, and a caliber?

A movement is the completed, finished individual mechanism contained inside the case of the watches,such as Rolex replica,Porsche Design replica,Richard Mille replica,Zenith replica,Hublot replica and Ferrari replica watches,not including the case or dial itself, which is responsible for keeping time.An ebauche is typically understood to mean a "raw" or unassembled, unfinished movement, including the major structural components (plates, bridges) and sometimes parts of the wheel train and other moving parts.A caliber is the collective name given to a series of movements of the same design.
Many watch companies will purchase complete movements from a major supplier such as ETA or Lemania, engrave their company's name and other information onto them, and encase it with their own or even contractor-supplied cases.This practice can be up-front - where the company acknowledges that the movements are not of their own design or manufacture, or it can be hidden - where the watch company claims to use "in-house" movements when the movements are in no way designed or manufactured internally.
Some watch companies will purchase an ebauche from a major supplier, polish and decorate the parts (i.e. finish the parts), and assemble it with standard parts to create a higher quality-controlled movement than the stock ready-made movement.
Other companies purchase ebauches, finish them to a high standard, modify parts of the movement, and add custom components like an upgraded escapement assembly - to create what might be called a custom version of that movement, much like how Carroll Shelby, AMG, or BMW's "M" division re-engineer existing automobiles to produce something with higher performance and exclusiveness.Many times, the company will rename the caliber as its own to reflect the modifications and finishing of the movement vs. an unmodified stock movement.
There is often a debate on whether a particular company is being deceptive in renaming a movement based on an outside supplier as an in-house caliber.
It should also be noted that the largest supplier of ebauches in Switzerland, ETA, can provide a wide variety of finishes on its products, from very raw parts to fully finished movements complete with Geneva stripes and other decoration.They even have a subsidiary, Soprod, that can perform custom finishing and even modifications to the basic movement.Therefore, there is by no means a single level of quality that one can ascribe to an ETA movement - there are basic versions all the way up to fully finished ones.

How to Measure Watch Band?

The easiest way to measure your watch band is to simply check the inside of your old band. Most straps have the sizes imprinted on the inside of the band,for example: Rolex replica,Porsche Design replica,Richard Mille replica,Zenith replica,Hublot replica and Ferrari replica watches.Secondly, you can measure the band itself. Remove watch strap and measure the width of the top of the watch band. This is the side of the band that attaches to the case.Lastly, you can measure the distance between the watch case itself (lug to lug).Most watch bands are measured in millimeter sizes. Use a ruler or a metric (mm) units to measures the band or the distance between the case or lugs of the watch. If you are measuring in inches please use the conversion chart below to find the size of your band in millimeters.
Measure the width between the extended parts of the case in mm.
Size Conversion Chart
Inches Millimeters
5/16 8mm
11/32 9mm
3/8 10mm
7/16 11mm
15/32 12mm
1 /2 13mm
9/16 14mm
19/32 15mm
5/8 16mm
21/32 17mm
11/16 18mm
3/4 19mm
25/32 20mm
13/16 21mm
7/8 22mm
15/16 24mm
1 26mm
What is a long or short watch strap?
Sizes 6mm to 15mm are Ladies lengths. 16mm and up are men’s lenghts
To get the length of the band, measure the watch band, excluding the buckle.
Chart for Men’s Bands
Band Lengths Inches Millimeters
Short 6.75-7.15 177 mm
Regular 7.25-7.50 190 mm
Long 7.75-8.50 213 mm
Chart for Ladies Bands
Band Lengths Inches Millimeters
Short 6.25 in 155 mm
Regular 6.50in 165 mm
Long 7.50in 190 mm

Watch Movements

Watches(Rolex replica,Porsche Design replica,Richard Mille replica,Zenith replica,Hublot replica and Ferrari replica watches) tell time through the integration of three main components: an energy source, a time regulating mechanism, and a display. A watch's energy source can be electronic (battery-powered) or mechanical (spring-wound). The main timekeeping mechanism is called 'movement', while the display can show time in two different ways: digitally, in which the watch uses a liquid crystal display to show the time in numbers, and/or analogue, in which the watch uses the traditional dial and hands. Today's watches fall into four major types of movement: mechanical/automatic, quartz, solar and kinetic:
Mechanical and Automatic Watches: Mechanical watches are made up of gears and springs that work together to tell time. They are powered by manual winding. Automatic mechanical movements mark the passage of time through a series of gear mechanisms that are wound by the movement of the wrist. These watches are often quite beautiful and designed with precise craftsmanship,for example: Breitling replica,U-Boat replica,Bell&Ross replica,Patek Philippe replica and Omega replicas.

Quartz Watches: A quartz watch works with a series of tiny electronic components fitted together behind the face. Rather than a wound spring, it is powered by a battery. The battery on a quartz crystal watch sends an electrical current to a tiny quartz crystal, which in turn vibrates at a very high frequency (32,768 times a second) to keep extremely accurate time. Quartz technology accounts for more than 90% of the world's watch production.

Solar Watches: The quartz accuracy in these watches is powered by electricity converted from natural and artificial light. They are made with solar panels and sometimes come with rechargeable batteries, such as lithium ion polymer batteries. This technology was developed by Japanese watchmaker, Citizen.

Kinetic Watches: Batteries are not required for these advanced watches. Kinetic watches utilise an innovative movement of microelectronics that respond to the movements of the wrist, maintaining quartz accuracy. The watch 'sleeps' if not worn for 72 hours, but wakes up when shaken and immediately returns to the correct time. The kinetic movement was developed by Japanese watchmaker, Seiko.

HOW DO I SET THE GMT & LOCAL TIME?

GMT means Dual Time Zone and it usually use a 24-hour clock instead of a 12-hour clock we normally use. GMT can be set with two time zones. A local minute-hour hand time and a GMT (sometimes red) arrow second time zone.You can find some watches have the GMT time zone,such as Rolex replica,Porsche Design replica,Richard Mille replica,Zenith replica,Hublot replica and Ferrari replica watches.
To adjust time, please follow the instructions below:
1. Unwind the crown anti-clockwise softly and slowly until it loosen up. There are two steps of pulling out the button stem. Do not exert too much force here and please make sure you do it lightly and carefully,as too much force will do harm to your beloved watches,such as Chopard replica,Cartier replica,Chanel replica,Corum replica,Franck Muller replica,Graham replica,Longines replica,Tudor replica,Romain Jerome replica and Tag Heuer replica.
2. STEP ONE is for setting the GMT second time zone. STEP TWO is for setting the local time. Pull one-step out is to set GMT and date by winding the button clockwise and anticlockwise respectively. Pull one more step is for setting local time. Pushing the crown inward one step will bring it back to GMT setting. Pushing it two steps will bring it back to normal position and you can wind it back clockwise while pushing it back softly to secure the crown onto the watchcase.
3. Set local time FIRST and then GMT SECOND time zone. When you set local time, GMT time will also be changed at the same time.

WHAT IS SCREW-IN CROWN? HOW IS THIS DIFFERENT FROM OTHERS?

Some watches have a screw-in crown,such as Rolex replica,Porsche Design replica,Richard Mille replica,Zenith replica,Hublot replica and Ferrari replica watches.A Screw-in crown will lock into the case of the watch when you turn the crown clockwise toward the watch case.It will tighten when it is screwed tight. Most Rolex watches use Screw-in crown. When you want to wind your watch, you have to un-lock the crown by turning the button anti-clockwise until you see the crown comes out of the watch a little bit, about 1.0 to 1.5 mm. Do not force the crown to come out cause it will easily break the stem link with the watch. When the crown comes out, you can then wind it, adjust time, date, day just like other watches.To lock it, slowly turn it and push it toward the watch until it is locked tight. NO need to apply extra force after it is tight! For most other non screw-in crown watches, you just wind it, adjust time, date, day without the need to un-screw the crown.
No matter the watch has a screw-in crown or not,if it is Chopard replica,Cartier replica,Chanel replica,Corum replica,Franck Muller replica,Graham replica,Longines replica,Tudor replica,Romain Jerome replica and Tag Heuer replica,you will find they are also very good.

WHAT IS THE FIRST THING I NEED TO DO UPON RECEIVING THE WATCH?

Upon receiving the watches,such as Rolex replica,Porsche Design replica,Richard Mille replica,Zenith replica,Hublot replica and Ferrari replica watches, please wind it. It is likely that the watch runs out of energy during the journey. Wind the watch by turning the crown for about 15 - 20 full turns clockwise. If you know your watch is battery, there is no need to wind it. If your watch has a screw-tight crown, release it by turning it anti-clockwise until it is loose,for example: Chopard replica,Cartier replica,Chanel replica,Corum replica,Franck Muller replica,Graham replica,Longines replica,Tudor replica,Romain Jerome replica and Tag Heuer replica.Then you can wind it for 15 – 20 times clockwise as mentioned. Once it is done, you can screw it tight by pushing the crown inside. Turn the crown clockwise and screw it tight back at the same time. By doing a manual winding of the watch, your watch will start to tick.