The Senator Diary was a groundbreaking timepiece upon its release, offering a unique feature that no other mechanical watch had achieved before: the ability to set an alarm up to 30 days in advance. This was made possible by the impressive Glashütte Original Caliber 100-13, which boasts a whopping 631 components, with 340 dedicated to the diary appointment module alone. When the set date and time arrives, the alarm will ring for a generous 80 seconds. The design of the watch is also noteworthy, with two crowns positioned opposite each other on the case, flanked by pushers. The right crown and pusher operate the Panorama Data display at 3 o'clock, while the left controls the diary alarm,