从哪几个方面来判断一块机械表怎么样？

<p style="box-sizing: border-box; border-bottom: 0px; border-left: 0px; padding-bottom: 0px; line-height: 2.4; widows: 2; text-transform: none; font-style: normal; text-indent: 0px; margin: 0px; outline-style: none; outline-color: invert; padding-left: 0px; outline-width: 0px; padding-right: 0px; font-family: Lato, 'Playfair Display', 'Open Sans', Arial, Verdana, Helvetica, 'Microsoft Yahei', sans-serif; white-space: normal; orphans: 2; background: rgb(255,255,255); letter-spacing: normal; color: rgb(40,40,40); font-size: 14px; vertical-align: baseline; border-top: 0px; font-weight: 300; border-right: 0px; word-spacing: 0px; padding-top: 0px; font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px”>机械表因为无与伦比的设计和内部精巧的结构受到很多表友的青睐，很多朋友在后买手表的时候都会选择机械手表，那有的朋友就有疑问了，我们购买机械表的时候应该如何挑选，又从哪几个方面来判断一块机械手表怎么样呢?

<p style="box-sizing: border-box; border-bottom: 0px; text-align: center; border-left: 0px; padding-bottom: 0px; line-height: 2.4; widows: 2; text-transform: none; font-style: normal; text-indent: 0px; margin: 0px; outline-style: none; outline-color: invert; padding-left: 0px; outline-width: 0px; padding-right: 0px; font-family: Lato, 'Playfair Display', 'Open Sans', Arial, Verdana, Helvetica, 'Microsoft Yahei', sans-serif; white-space: normal; orphans: 2; background: rgb(255,255,255); letter-spacing: normal; color: rgb(40,40,40); font-size: 14px; vertical-align: baseline; border-top: 0px; font-weight: 300; border-right: 0px; word-spacing: 0px; padding-top: 0px; font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px”>

<p style="box-sizing: border-box; border-bottom: 0px; border-left: 0px; padding-bottom: 0px; line-height: 2.4; widows: 2; text-transform: none; font-style: normal; text-indent: 0px; margin: 0px; outline-style: none; outline-color: invert; padding-left: 0px; outline-width: 0px; padding-right: 0px; font-family: Lato, 'Playfair Display', 'Open Sans', Arial, Verdana, Helvetica, 'Microsoft Yahei', sans-serif; white-space: normal; orphans: 2; background: rgb(255,255,255); letter-spacing: normal; color: rgb(40,40,40); font-size: 14px; vertical-align: baseline; border-top: 0px; font-weight: 300; border-right: 0px; word-spacing: 0px; padding-top: 0px; font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px”>　　1.机械表的外观。

<p style="box-sizing: border-box; border-bottom: 0px; border-left: 0px; padding-bottom: 0px; line-height: 2.4; widows: 2; text-transform: none; font-style: normal; text-indent: 0px; margin: 0px; outline-style: none; outline-color: invert; padding-left: 0px; outline-width: 0px; padding-right: 0px; font-family: Lato, 'Playfair Display', 'Open Sans', Arial, Verdana, Helvetica, 'Microsoft Yahei', sans-serif; white-space: normal; orphans: 2; background: rgb(255,255,255); letter-spacing: normal; color: rgb(40,40,40); font-size: 14px; vertical-align: baseline; border-top: 0px; font-weight: 300; border-right: 0px; word-spacing: 0px; padding-top: 0px; font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px”>　　目测外壳，表面，针头，无“沙眼”，划痕，涂层光亮，无色差，后盖应紧密。

<p style="box-sizing: border-box; border-bottom: 0px; border-left: 0px; padding-bottom: 0px; line-height: 2.4; widows: 2; text-transform: none; font-style: normal; text-indent: 0px; margin: 0px; outline-style: none; outline-color: invert; padding-left: 0px; outline-width: 0px; padding-right: 0px; font-family: Lato, 'Playfair Display', 'Open Sans', Arial, Verdana, Helvetica, 'Microsoft Yahei', sans-serif; white-space: normal; orphans: 2; background: rgb(255,255,255); letter-spacing: normal; color: rgb(40,40,40); font-size: 14px; vertical-align: baseline; border-top: 0px; font-weight: 300; border-right: 0px; word-spacing: 0px; padding-top: 0px; font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px”>　　2，机械表声音。

<p style="box-sizing: border-box; border-bottom: 0px; border-left: 0px; padding-bottom: 0px; line-height: 2.4; widows: 2; text-transform: none; font-style: normal; text-indent: 0px; margin: 0px; outline-style: none; outline-color: invert; padding-left: 0px; outline-width: 0px; padding-right: 0px; font-family: Lato, 'Playfair Display', 'Open Sans', Arial, Verdana, Helvetica, 'Microsoft Yahei', sans-serif; white-space: normal; orphans: 2; background: rgb(255,255,255); letter-spacing: normal; color: rgb(40,40,40); font-size: 14px; vertical-align: baseline; border-top: 0px; font-weight: 300; border-right: 0px; word-spacing: 0px; padding-top: 0px; font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px”>　　手表上足发条后，用耳朵聆听声音，它应该清晰对称，并且不会随着方向而改变。

<p style="box-sizing: border-box; border-bottom: 0px; border-left: 0px; padding-bottom: 0px; line-height: 2.4; widows: 2; text-transform: none; font-style: normal; text-indent: 0px; margin: 0px; outline-style: none; outline-color: invert; padding-left: 0px; outline-width: 0px; padding-right: 0px; font-family: Lato, 'Playfair Display', 'Open Sans', Arial, Verdana, Helvetica, 'Microsoft Yahei', sans-serif; white-space: normal; orphans: 2; background: rgb(255,255,255); letter-spacing: normal; color: rgb(40,40,40); font-size: 14px; vertical-align: baseline; border-top: 0px; font-weight: 300; border-right: 0px; word-spacing: 0px; padding-top: 0px; font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px”>　　3，机械表走时精准。

<p style="box-sizing: border-box; border-bottom: 0px; border-left: 0px; padding-bottom: 0px; line-height: 2.4; widows: 2; text-transform: none; font-style: normal; text-indent: 0px; margin: 0px; outline-style: none; outline-color: invert; padding-left: 0px; outline-width: 0px; padding-right: 0px; font-family: Lato, 'Playfair Display', 'Open Sans', Arial, Verdana, Helvetica, 'Microsoft Yahei', sans-serif; white-space: normal; orphans: 2; background: rgb(255,255,255); letter-spacing: normal; color: rgb(40,40,40); font-size: 14px; vertical-align: baseline; border-top: 0px; font-weight: 300; border-right: 0px; word-spacing: 0px; padding-top: 0px; font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px”>　　一些大型手表连锁店和品牌自营店有接受客户代测的业务，他们会使用特殊的机械手表校准仪器来衡量。购买时，可以要求销售人员检查走时精度和位置的准确性。

<p style="box-sizing: border-box; border-bottom: 0px; text-align: center; border-left: 0px; padding-bottom: 0px; line-height: 2.4; widows: 2; text-transform: none; font-style: normal; text-indent: 0px; margin: 0px; outline-style: none; outline-color: invert; padding-left: 0px; outline-width: 0px; padding-right: 0px; font-family: Lato, 'Playfair Display', 'Open Sans', Arial, Verdana, Helvetica, 'Microsoft Yahei', sans-serif; white-space: normal; orphans: 2; background: rgb(255,255,255); letter-spacing: normal; color: rgb(40,40,40); font-size: 14px; vertical-align: baseline; border-top: 0px; font-weight: 300; border-right: 0px; word-spacing: 0px; padding-top: 0px; font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px”>

<p style="box-sizing: border-box; border-bottom: 0px; border-left: 0px; padding-bottom: 0px; line-height: 2.4; widows: 2; text-transform: none; font-style: normal; text-indent: 0px; margin: 0px; outline-style: none; outline-color: invert; padding-left: 0px; outline-width: 0px; padding-right: 0px; font-family: Lato, 'Playfair Display', 'Open Sans', Arial, Verdana, Helvetica, 'Microsoft Yahei', sans-serif; white-space: normal; orphans: 2; background: rgb(255,255,255); letter-spacing: normal; color: rgb(40,40,40); font-size: 14px; vertical-align: baseline; border-top: 0px; font-weight: 300; border-right: 0px; word-spacing: 0px; padding-top: 0px; font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px”>　　4、机械表上条。

<p style="box-sizing: border-box; border-bottom: 0px; border-left: 0px; padding-bottom: 0px; line-height: 2.4; widows: 2; text-transform: none; font-style: normal; text-indent: 0px; margin: 0px; outline-style: none; outline-color: invert; padding-left: 0px; outline-width: 0px; padding-right: 0px; font-family: Lato, 'Playfair Display', 'Open Sans', Arial, Verdana, Helvetica, 'Microsoft Yahei', sans-serif; white-space: normal; orphans: 2; background: rgb(255,255,255); letter-spacing: normal; color: rgb(40,40,40); font-size: 14px; vertical-align: baseline; border-top: 0px; font-weight: 300; border-right: 0px; word-spacing: 0px; padding-top: 0px; font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px”>　　手感轻松，装载时无噪音。除了自动手表上条上足后有滑动现象外，一般手表发条应该能够上足而不会打滑。

<p style="box-sizing: border-box; border-bottom: 0px; border-left: 0px; padding-bottom: 0px; line-height: 2.4; widows: 2; text-transform: none; font-style: normal; text-indent: 0px; margin: 0px; outline-style: none; outline-color: invert; padding-left: 0px; outline-width: 0px; padding-right: 0px; font-family: Lato, 'Playfair Display', 'Open Sans', Arial, Verdana, Helvetica, 'Microsoft Yahei', sans-serif; white-space: normal; orphans: 2; background: rgb(255,255,255); letter-spacing: normal; color: rgb(40,40,40); font-size: 14px; vertical-align: baseline; border-top: 0px; font-weight: 300; border-right: 0px; word-spacing: 0px; padding-top: 0px; font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px”>　　5，机械表拨针。

<p style="box-sizing: border-box; border-bottom: 0px; border-left: 0px; padding-bottom: 0px; line-height: 2.4; widows: 2; text-transform: none; font-style: normal; text-indent: 0px; margin: 0px; outline-style: none; outline-color: invert; padding-left: 0px; outline-width: 0px; padding-right: 0px; font-family: Lato, 'Playfair Display', 'Open Sans', Arial, Verdana, Helvetica, 'Microsoft Yahei', sans-serif; white-space: normal; orphans: 2; background: rgb(255,255,255); letter-spacing: normal; color: rgb(40,40,40); font-size: 14px; vertical-align: baseline; border-top: 0px; font-weight: 300; border-right: 0px; word-spacing: 0px; padding-top: 0px; font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px”>　　当针头固定时，手感觉舒适，太紧或太松都不好。时针和分针应该协调(当针分别对准3个，6个，9个和12个字符时，分针不得偏离12个字符±4个分区)，小时，分针和秒针不会互相碰触。

<p style="box-sizing: border-box; border-bottom: 0px; border-left: 0px; padding-bottom: 0px; line-height: 2.4; widows: 2; text-transform: none; font-style: normal; text-indent: 0px; margin: 0px; outline-style: none; outline-color: invert; padding-left: 0px; outline-width: 0px; padding-right: 0px; font-family: Lato, 'Playfair Display', 'Open Sans', Arial, Verdana, Helvetica, 'Microsoft Yahei', sans-serif; white-space: normal; orphans: 2; background: rgb(255,255,255); letter-spacing: normal; color: rgb(40,40,40); font-size: 14px; vertical-align: baseline; border-top: 0px; font-weight: 300; border-right: 0px; word-spacing: 0px; padding-top: 0px; font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px”>　　6，机械表起动性能。

<p style="box-sizing: border-box; border-bottom: 0px; border-left: 0px; padding-bottom: 0px; line-height: 2.4; widows: 2; text-transform: none; font-style: normal; text-indent: 0px; margin: 0px; outline-style: none; outline-color: invert; padding-left: 0px; outline-width: 0px; padding-right: 0px; font-family: Lato, 'Playfair Display', 'Open Sans', Arial, Verdana, Helvetica, 'Microsoft Yahei', sans-serif; white-space: normal; orphans: 2; background: rgb(255,255,255); letter-spacing: normal; color: rgb(40,40,40); font-size: 14px; vertical-align: baseline; border-top: 0px; font-weight: 300; border-right: 0px; word-spacing: 0px; padding-top: 0px; font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px”>　　慢慢旋转上部手柄上的弹簧并观察秒针。通常，上击的旋转次数越少，手表的起动性能越好。

<p style="box-sizing: border-box; border-bottom: 0px; text-align: center; border-left: 0px; padding-bottom: 0px; line-height: 2.4; widows: 2; text-transform: none; font-style: normal; text-indent: 0px; margin: 0px; outline-style: none; outline-color: invert; padding-left: 0px; outline-width: 0px; padding-right: 0px; font-family: Lato, 'Playfair Display', 'Open Sans', Arial, Verdana, Helvetica, 'Microsoft Yahei', sans-serif; white-space: normal; orphans: 2; background: rgb(255,255,255); letter-spacing: normal; color: rgb(40,40,40); font-size: 14px; vertical-align: baseline; border-top: 0px; font-weight: 300; border-right: 0px; word-spacing: 0px; padding-top: 0px; font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px”>

<p style="box-sizing: border-box; border-bottom: 0px; border-left: 0px; padding-bottom: 0px; line-height: 2.4; widows: 2; text-transform: none; font-style: normal; text-indent: 0px; margin: 0px; outline-style: none; outline-color: invert; padding-left: 0px; outline-width: 0px; padding-right: 0px; font-family: Lato, 'Playfair Display', 'Open Sans', Arial, Verdana, Helvetica, 'Microsoft Yahei', sans-serif; white-space: normal; orphans: 2; background: rgb(255,255,255); letter-spacing: normal; color: rgb(40,40,40); font-size: 14px; vertical-align: baseline; border-top: 0px; font-weight: 300; border-right: 0px; word-spacing: 0px; padding-top: 0px; font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px”>　　只要掌握了上述6点技巧，就不难看出机械手表的好坏。事实上，除了学习鉴定机械手表的相关技巧外，上手感受一下其实更有体验感。