" caliber i " is equipped with a second hand stop mechanism , in other words , when the crown has been pulled out , a spring gently bends itself around the balance shaft and the second hand stops , hence permitting the watch to be set accurately to the second 螺旋環(huán)使鐘表的節(jié)律保持始終如一,平衡輪的安裝具有防震功能。如果拉動發(fā)條冠就會有一個彈簧輕柔地靠在平衡輪環(huán)上,使手表停止運行。這樣手表可以分秒不差地進行調(diào)節(jié)。