アルピナさんのインスタグラム写真 - (アルピナInstagram)「This bicompax chronograph measures short time intervals (30 minutes) thanks to the AL-727 calibre, which oscillates at a high frequency of 4 Hz (28,800 vib/h) to ensure accuracy and shock-resistance, two cornerstones of the Alpina spirit. Get more information about it by clicking the link in our bio! #StartimerPilotHeritageCronograph #AlpinaWatches」9月11日 22時01分