江诗丹顿换表关冠顾名思义，所谓的潜水表是指经过防水处理并用于潜水的表。除了原始的瑞士天文台认证（COSC认证要求手表的每日计时精度在-4秒到6秒之间）之外，欧米茄还与瑞士联邦计量学会（METAS）合作建立更严格的认证标准-直zhen天文台认证。江诗丹顿换表关冠参加沛纳海经典帆船挑战赛的帆船设计简洁大方，造型无瑕。

                         

来源：天梭服务  

When the moon approaches a certain point on the earth, the corresponding earth and the place opposite to the earth will be at high tide; on the contrary, when the moon slowly moves away, the tide will begin to ebb here and on the other side of the earth, and the tide will be daily Rising twice, falling twice, during the full moon and new moon, the tide will rise and fall more obviously, and there will be so-called spring tides or neap tides.Roger Dubuis in 1995.

                         

来源：汕尾英纳格手表维修 

江诗丹顿换表关冠上弦时请注意不要用力拉动或旋转表冠，以免扭曲发条或发条，造成不必要的麻烦。ISO6425规定的防水性是指在超压下的防水能力，也就是说，经过测试的手表必须达到比所宣传的防水性高25％的水平才能通过测试；除防水外，发光效果和透明水垢，耐腐蚀性能以及外圈都有相应的要求。江诗丹顿换表关冠手表的表冠也由18K白金制成，表冠上刻有经典的十字LOGO。江诗丹顿换表关冠

                          

参考文献：东莞万国维修服务  

My 556 is still early.This is a big step taken by Ulysse Nardin in China. The entire series of Ulysse Nardin was displayed and sold in China for the first time.