Watch purchase rules Now watch the individual has become a "​business card"​, what to wear the watch may be a celebration of personal temperament, taste and even identity, especially these types of Omega watches Rolex. In this case, people in the selection of watches, always to strive for excellence, and seek good good, but how can we choose to smug and superior watch it? You usually watch in the selection of the time is not there some errors? 1 pros and Swiss Replica Watches cons: quartz, mechanical hard to compete with Typically, expensive mechanical watches than quartz watches, mechanical watches, but this does not mean that it must perform better than quartz watches. Quartz watches and mechanical watches, the most important difference is the use of which form the core energy source to drive the movement. Mechanical watches have a helix. When people to watch winders, the spiral also was on tight. In the helix is ??released, it begins to form the core of the movement to drive. Quartz watches are using a battery as the energy source. Battery output power to watch in the electronics and motor block. Block will output a second electronic pulse to the motor, the motor is running to promote hands. Therefore, from the time point of view, than mechanical watches, quartz watches to be more precise. As the spiral movement mechanical watches inconsistent speed, timing accuracy will decline, and its accuracy will be affected by temperature, location, and component wear and other factors. Replica Swiss Watches Therefore, the general mechanical watches day with 15 to 30 seconds the error is relatively normal, the smallest error can have 4 to 5 seconds. But not the same as quartz watches, quartz crystal can provide the most stable pulse, so it can ensure the highest accuracy. Under normal circumstances, the monthly error of quartz watches 15 to 25 seconds, the smallest error of the year only 5 seconds. The reason why mechanical watches, quartz watches expensive than it is because of mechanical watches in its production process requires precise manual adjustment of the school, and the quartz watch in the automatic production line is usually out of the assembly. 2 pick material: Case to vary Watch shell material commonly have K-gold, gold, titanium, stainless steel, semi-steel, chrome, alloy shell and so on. K gold case only high-end brand names used in the table, the price is generally Breitling Watches a few million or more;​ and semi-steel (just watch the back cover is stainless steel) chrome plated table belong to a class of low-grade table, the case likely to be corrosion. Gold-plated case more beautiful, but not necessarily gold thickness (including strap) replica Breitling Watches can easily be worn away. If you choose gold-plated sheet, coating thickness of 10 microns or more is best. The table compares solid gold titanium wear, but the color does not look good. Is now more popular color case strap (gold or gold-plated and stainless steel), they are more beautiful and durable. Gold-plated sheet steel table than expensive than the leather strap watch with steel strap watch models are much cheaper. The love sweating or love sports, outdoor workers, long-term exposure to chemical substances of acid (such as medical workers) should be worn stainless steel shell of the table. K gold and mercury-containing chemicals to the great damage to gold, make gold color. Copper plating head table, case and strap in the side very easily sweat corrosion, the coating off. Steel strap Breitling Watches replica free of the sub-core and solid core, hollow strap are low table with a lighter weight, and more durable solid strap.