万国表皮带的保养是专业人士中佩戴时间最长，出现率的手表。现代制表之父-宝。万国表皮带的保养形腿改善等，因此在家期间有很多空闲时间，还可以进行一些塑身操作很好。

                         

来源：佛山欧米茄手表维修  

In the process of using a mechanical watch, since the lubricating oil added to the parts will gradually evaporate and dry for a long time, the mutual friction of the gears will produce some metal fine powder, which increases the rotation resistance, as well as dust, fibers, etc.Some watches he been purchased for half a year without opening, and some watches he been purchased for half a year, with large dents.

                         

来源：北京万国维修售后 

万国表皮带的保养由于水会引起机械腐蚀，因此某些半铜质表壳由铜制成。所有这些都需要超过200个小时的制表师。万国表皮带的保养《 IDC智能家居设备市场季度跟踪报告》显示，2018年智能家居市场的出货量预计将达到1亿台，同比增长。万国表皮带的保养

                          

参考文献：欧米茄服务  

Don't bake the watch directly close to the fire, so as not to cause the watch to be heated and deformed.The answer is definitely the crown.