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Close-Up: Breguet Classique 5717 Hora MundisharetweetshareThe #breguet Classique Hora Mundi, in simple terms, could be the first instance of a mechanical timepiece with an instant-jump time zone display. All the displays jump between timezones while using push of a mouse button. Once you discover it, the theory is so intuitive, you wonder why it offers not been done before. The Breguet Classique Hora Mundi provides you with the 5717 self-winding mechanical movement, that's based upon Caliber 777 which has a silicon escapement, in this instance fitted with the additional module. The dial displays hours, minutes and seconds via centrally-mounted hands. The date is at 12 o'clock, as well as the city or time zone indicator are at 6. A big sun/moon or day/night display rests between 3 and 4 o'clock.The instant-jump time zone feature with fully-synchronized displays is the showstopper. This is the world-first for a mechanical watch, and even this timepiece has generated four patent applications. Here's how it functions:From one of several 24 available time zones, the wearer preselects two cities which is why he wishes to display local time. Once set, he can instantly change all displays in one city to another by pressing around the combined crown/pushpiece at 8 o'clock. By way of example, assume it really is 4 p.m. in Paris for the 25th with the month. Rotating the combined crown/push-piece reveals "Paris" from the window at 6 o'clock, next the crown at 3 o'clock can be used to set both your hands to 4 o'clock and also the date to 25, taking good care how the day/night indicator shows the sun's rays. For convenient display on the local in time Sydney, the crown/push-piece is rotated a single article the particular Australian city in the window at 6 o'clock; the watch then automatically sets itself to Sydney time. Accurate operation during setting is ensured by way of a stop second system. Because the difference in time is nine hours, the hour hand will make progress by nine hours. Concurrently, the date will vary towards the 26th along with the day/night indicator will turn to show the moon. If it is 4 p.m. in Paris, it truly is 1 a.m. the very next day in Sydney. When the watch has been preset, the instant-jump time zone display system will instantly change every one of the indications - hour, date and day/night - from Paris time for it to Sydney time once the wearer presses about the crown/push-piece. (Photos is usually enlarged which has a click.)The Hora Mundi now offers a classic date display that creates using a dragging disc. The disc appears in a window on the dial at 12 o'clock. Of the question is large enough to show three consecutive dates at the same time. To avoid any confusion in reading the date, Breguet's watchmakers have added a tiny retrograde hand, hidden under the dial aside from the tip, and ending inside a circle that surrounds the date after seems like at the left side in the date window. The hand follows the date through the day until it disappears at the right side of the window. At nighttime, the hand jumps time for the left side on the window to point out the date for the day just beginning.The Hora Mundi's four patent applications claim 1) a timepiece comprising a mechanism with two timezones, 2) the display of a time zone at the moment via the main set of hands, 3) a programmable and reprogrammable mechanical memory wheel for just a timepiece, and 4) a mechanism for displaying a temporal dimension using a dragging hand.The Breguet Hora Mundi case measures 44 mm across by 13.55 mm thick, in fact it is obtainable in in 18k rose gold or 950 platinum, both water-resistant to 30 meters. Hands go beyond a good gold dial available in three versions: south america, the eu and African continents, breitling price or Asia and Oceania. The dial's periphery includes a silvered and circular satin-brushed finish, a border that is certainly hand-engraved using a rose engine, and red-gold hour markers - or platinum depending on the case version. The dial's center, depicting a opinion of the planet, is stamped and hand-engraved on a rose engine to develop a "wave" motif around the oceans. The oceans are then given multiple coats of lacquer as well as the continents are polished. About the day/night indicator, the night sky is made of lapis lazuli containing numerous pyrite inclusions which are like tiny specks of gold and represent the heavens. Sunlight and moon are made of solid gold: gold with the sun, rhodium-plated platnium for the moon rolex datejust 2 . The quilt just for this disc, representing a cloud and bearing the Breguet name along with the watch's serial number, is additionally made from silvered 18k gold and engraved entirely manually.Additional technical information appears beneath the photo.BREGUET CLASSIQUE HORA MUNDI - SPECSRef. 5717BR/US/9ZUCase: Round, in 18K rose gold with finely fluted caseband. Caseback hand-engraved using a rose engine and fitted using a sapphire crystal. Rounded lugs welded towards the case, with screw-pins securing the strap. Screw-locked crown at 3 o'clock. Push-piece/crown at 8 o'clock. 44-mm diameter. Water-resistant to three bar (30 meters).Dial 18k gold depicting the American continent watches , hand-engraved on the rose engine with a "wave" motif beneath a translucent lacquer. Silvered and hand-engraved day/night indication in 18k gold. Individually numbered and signed Breguet. Applied chapter ring with Roman numerals. City indication at 6 o'clock. Date aperture at 12 o'clock. Open-tipped Breguet hands in blued steel.Movement: Self-winding, numbered and signed Breguet. Instant time-zone jump with synchronized date, day/night and city indications. Cal. 77F0 made from base Caliber 777 to comprehend plate. 12 lignes. 43 jewels. 55-hour power reserve. Oscillating weight in 18k gold, hand-engraved on the rose engine. Flat balance-spring and Swiss straight-line lever escapement in silicon. Breguet balance wheel with four adjusting screws. 4 Hz frequency. Adjusted in six positions.Strap: Alligator leather.Made available with European or Asian dials as well as in 950 platinum with Asian, American or European dials.This information was originally published on March 31, 2011 and contains undergone an update.sharetweetshare