_中文字幕在线视频

ONLINE SINCE 1999
The most trusted name in luxury watches!
Free Shipping within the USA!
info@bjfd88.com | 845-357-8300 | 800-470-2343
ONLINE SINCE 1999
The most trusted name in luxury watches!
Automatic Watches FAQ

What is the difference between manual watches and automatic watches?

Mechanical watches are marvels comprised of springs, components, gears and screws which all work together to tell time.

At one point in history, all watches were mechanical and required manual winding in order to be powered. These watches were typically wound via the crown, which in turn tightens the mainspring inside the watch. The mainspring is the power source of all mechanical watches. Once wound, through a series of components and gears known as an escapement, the mainspring's tension is incrementally released which powers the watch.

What makes an automatic watch (also known as a self-wind watch) different is that it has a weighted rotor mounted to the back of the watch's movement. The rotor is usually shaped in a semi-circle and is connected to the mainspring via a series of gears. With the motion of your wrist, the rotor spins on an axle and in doing so, winds the mainspring which in turn powers your watch.

What is a Power Reserve?

Power Reserve

The power reserve is the amount of time it takes for a fully wound watch to unwind when not worn. Most mechanical watches have a power reserve of between 36 and 42 hours. This means that the watch can run for that duration on a full wind. Please refer to the manufacturer's product specifications to familiarize yourself with what duration you can expect from your watch's power reserve.

Do automatic watches need to be manually wound?

_中文字幕在线视频Yes, they do. Picture the mainspring inside a watch. When you first get an automatic watch, the spring is completely unwound. Moving the watch around will cause the rotor to spin, which in turn will begin winding the mainspring. While this will get the watch running it will not be enough to fully tighten the mainspring which would let you take advantage of the power reserve to its fullest capacity.

_中文字幕在线视频It is therefore important to first wind the crown about 30-40 times which is enough to completely wind the mainspring on most watches. Once the mainspring has been fully wound, and the watch is worn on an active wrist, the rotor will do its job by continuously winding the mainspring thereby topping off the watch's power reserve.

There is a common misconception that an automatic watch never needs to be wound. It's a mistake to think that a watch that has wound down or that is close to the end of its power reserve just needs to be worn for a while to wind itself up. While this may give you just enough power to keep the watch running in the here and now, and it may even run for a little while afterwards when it's not worn, it may not have had the chance to fully wind the mainspring and you'll experience a shorter power reserve, once the watch is removed from your wrist.

Once you have manually wound and set a watch it is now ready for use and if you wear the watch daily, an active wrist should be enough to keep the watch fully wound…even if you remove the watch overnight. However, we do advise to fully wind the watch manually if it hasn’t been worn for most of its power reserve duration

People who are not very active like those who sit at a computer for many hours a day don't always move their wrists enough to fully wind a watch in which case they may need to give it a boost every so often by winding the crown about 30 -40 times.

Can an automatic watch be overwound?

No. Automatic watches have a mechanism in the movement that disengages the winding gears from the mainspring once it is fully wound.

Watch Crown

How do you wind an automatic Watch?

_中文字幕在线视频A watch is wound via its crown, usually clockwise. Keep the crown in its pushed-in position and wind the crown clockwise. If your watch has a screw-down crown, you first need to unscrew the crown before winding.

Another way to keep your automatic watch fully wound is by using a winder. A watch winder is a device that you mount your watch on for times when you are not wearing it. A winder moves the watch around mimicking the movements of a wrist. This is especially convenient if you own more than one automatic watch or have a watch with a high complication such as a perpetual calendar which is more complicated and takes extra time to set.

一受两攻有双龙入菊_耽美肉嗨从头做到尾_两个攻同时进入双性受 中文字幕在线在线亚洲_中文字幕在线视频 电影 一本到高清视频免费观看-天天看高清视频在线 日本xnxnxnxnxn拍拍-_中文字幕在线视频 4438最新全国免费视频网-_中文字幕在线视频 222eee野鸡网视频2区-_中文字幕在线视频 55we韩国女主播免费视频-_中文字幕在线视频 在线a 在线a发布网|在线a在线电影|在线a.com|日韩在线a 一本之道高清在线观看在线视频_一本之道高清在线观看手机观看_日韩一本之道高清在线观看影院 正在播放母息子友人犯_正在播放中文字幕母息子_友人の母系列在线播放 1024手机在线基地播放-_中文字幕在线视频 一道本无吗dⅤd在线播放一区-宅男免费毛片手机在线 依人在线 依人在线手机在线观看依人在线在线视频|依人在线最新网址 用茄子捅自己下面视频_茄子视频在线观看 1024最新手机在线观看-_中文字幕在线视频 伊人久久精品视频在线,伊人久久精品视频在线免费观看,伊人久久精品视频在线 一本之道高清在线观看-一本之道高清在线观看一区-日本一本au道大尺码专区 猫咪在线播放maomi99伊人-_中文字幕在线视频 wwのpornhubのcom-_中文字幕在线视频 2017夜夜橾天天橾在线视频-_中文字幕在线视频 xvldeos免费中文视频-_中文字幕在线视频 00后艺校萝莉14部资源-_中文字幕在线视频 在线a视频网站 在线a视频网站在线视频_在线a视频网站手机在线观看_在线a视频网站电影 人碰xoo在线视频永久免费-_中文字幕在线视频 在线a 免费 在线a 免费在线视频_在线a 免费手机在线观看_在线a 免费电影 樱桃网站视频官网/私人樱桃影院/樱桃视频入口网址 一道本无吗dⅤd在线播放一区-大香伊人在线视频 快猫vip破解版apk宅男-_中文字幕在线视频 2000影院m3u8免费高清-_中文字幕在线视频 1769zyz资源在线视频-_中文字幕在线视频