无知的有些可怕。
五十噚才是潜水外圈的鼻祖…… 别啥都能和劳力士搭上关系 Blancpain Fifty Fathoms
For instance, the original Blancpain models featured a locking bezel in order to check the dive time and the remaining air reserve. This became the first patent for theFifty Fathoms. That feature is now a one-way rotating bezel, standard on most dive watches.