The 1920s saw the emergence of the first perpetual calendar
wristwatches representing authentic feats of miniaturization.
Two of the most popular complications in horology today are the rattrapante or split seconds chronograph and the perpetual calendar
One could do much worse than go to the Calender holding in one's mind the calendars of saints' days, perpetual calendars
, and the Kalender of Shepherdes; or with the insight--whether as a truth or a provocation-that Spenser 'embeds within a medieval calendar a modern, Elizabethan one, a calendar of revolutionary time, that motion whereby bodies return to their original and pure identities'.
Complete almanac information includes perpetual calendars
, five-year holiday planners and astronomical information.
This sale includes a variety of watch 'complications', from minute repeaters to perpetual calendars
which never fail to fascinate and intrigue established collectors," said Tim Bourne, international co-head of watches for Christie's.
The Baume brand won gold medals at the Universal Exhibitions in Paris, London, Philadelphia and Geneva with its complication watches -- tourbillons, minute repeaters and perpetual calendars
-- and was repeatedly successful in what was then the most famous chronometry competition of them all: the one held by the Kew Teddington Observatory London.