The Glashütte Original Senator Excellence Perpetual Calendar Bucherer Blue is a perpetual calendar that a retailer collaboration made stranger, and better. Fifty pieces. Calibre 36-02 inside, chronometer-certified, running the panorama date, weekday, month, leap-year indicator and moonphase off 100 hours of power reserve — a specialist's list of complications wearing a sport watch's disguise. The dial trades the standard Roman numerals for lance-shaped applied markers in a blue found nowhere else in the Senator Excellence catalogue, and the black rubber strap carries a pattern referencing Bucherer's 1888 founding date, with an alligator strap included for the days that call for restraint. 42mm steel. A perpetual calendar that doesn't dress like one. Full box and papers.