Emporio armani men watch most of the gold layer of 14K gold, this gold in addition to containing 58.5% pure gold, but also contains a certain amount of silver. Silver and some of the air industrial emissions react with volatile after the surface will produce a layer of black silver sulfide film, so that the [...]

Officine panerai watches 25 ~ 28 ℃ in temperature when a timing error in a second or less day and night, when the temperature is below 0 ℃ to 50 ℃ or above, two seconds slower every day and night. At the same time when the temperature is as high as 60 ℃, the LCD [...]