100-13-01-01-50Ref

The Senator Diary debuted as the first mechanical timepiece capable of setting an alarm up to 30 days in advance, powered by the 631-component Caliber 100-13. It features a 3 o'clock Panorama Date, a 9 o'clock alarm subdial, and an 80-second alarm duration, with a third spring barrel ensuring the alarm remains wound. Available as ref. 100-13-01-01-01 with a pin buckle, 100-13-01-01-04 with a folding clasp, or 100-13-01-01-50 with a short folding clasp, all on alligator straps.