At introduction, the Senator Diary represented a world first: no mechanical watch has ever made it possible to set an alarm up to 30 days ahead of time.The heart of the Senator Diary is the Glashütte Original Caliber 100-13 including 631 components (the diary appointment module alone consists of 340 components). When the set date and time arrives, the alarm rings – for up to 80 seconds.The Senator Diary is beautifully balanced, with two crowns positioned directly opposite each other on either side of the case, each flanked by a pusher. The crown and pusher on the right operate the compelling Panorama Data display, positioned at 3 o’clock.The eye of the connoisseur is drawn immediately to the diary alarm — a subdial at 9 o’clock and a gently curving aperture indicated by an arrow at 6 o’clock.A superb example of the art of engineering at Glashütte Original, the ingeniously interlocking components permit the wearer to set an appointment beyond the end of the month, even when a manual correction of the date is required; any change in date at the end of the month is passed along to the alarm mechanism, obviating the need to reset the alarm. A third spring barrel built into the module ensures that even if the watch runs down, the alarm remains wound.Reference 100-13-04-04-02 is fitted with an alligator strap with pin buckle.Reference 100-13-04-04-04 is fitted with an alligator strap with folding clasp.Reference 100-13-04-04-50 is fitted with an alligator strap with shorter folding clasp.
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