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Movado, automatic perpetual calendar ref 44.B3.881, 1990s

Another notable invention is the H. Moser & Cie Perpetual Calendar, which debuted in 2006 and received the Geneva Grand Prix in the same year. This perpetual calendar is one of the most convenient and reliable in the watch industry theformulaformiracles(.)com/forums/topic/blood-pressure-wearable-devices-for-measuring-it-introduced-by-science/, as its mechanism allows you to combine the convenience of simultaneous correction of all calendar indicators in both directions with the effect of an instant calendar. It, in fact, has no restrictions on use, it does not have “red zones” when the date cannot be translated. This watch is very difficult to break. The caliber HMC 341 was created by renowned craftsman Andreas Strehler and is a combination of a planetary wheel system and a set of levers for a leap year. Instant date switching is provided by using a snail of a special shape, on which a probe that switches the date slides. Of course, it should be said that the reliability and safety of the H. Moser & Cie device is not least ensured by the conciseness of the display, which they could perfectly beat at the factory. This watch dmcsite(.)com/forum/suggestion-box/50900-suggested-spring-2019-beautiful-apple-watch-bands shows only the date in the window and the month on the dial with the witty central small hand, which uses 12 hourly indexes as 12 month marks. Neither the day of the week, nor the phases of the moon, and the cycle of a leap year is laid out on the reverse side.

Omega, Louis Brandt Perpetual Skeleton Calendar

Omega, Louis Brandt perpetual calendar-skeleton in yellow gold, released in honor of the founder of the company in the 1990s

Alternative Eternity

Another feature of the classical scheme with a large lever is that traditionally the entire module of the perpetual calendar (and the perpetual calendar is a module powered by the central clock wheel) is located under the dial - in the so-called frame (cadrature). And if for classic thin “evenings” with a closed dial, such as in the new products htcdesireforum(.)com/htc-desire-lounge-(off-topic)/overview-of-samsung-galaxy-watch-active/ of this year's Vacheron Constantin Overseas Ultrathin Perpetual Calendar or Audemars Piguet Royal Oak Perpetual Calendar, this can be called an advantage, then for manufacturers experimenting with volumetric designs, this can be an obstacle . Such an obstacle was encountered at MB&F when implementing the idea of ​​creating an eternal calendar as part of the Legacy Machines collection, which is distinguished by three-dimensional architecture.

Cartier Rotonde de Cartier Astrocalendaire Watch

Cartier Rotonde de Cartier Astrocalendaire, three-level perpetual calendar around a flying tourbillon, caliber 9459 in a 45 mm platinum case, 2014

The MB&F Legacy Machine Perpetual Calendar mechanism still uses a program wheel, or rather its kind - in some modules the program wheel makes a turn not in 4 years, but in a year and its operation goldenlife(.com.)au/blog/p-0_112_0_0_39290/are-wearable-electronices-a-part-of-beauty.html is additionally connected with a separate four-year leap wheel. But unlike the traditional software wheel, the MB&F wheel believes that the default month is not 31 days, but 28 days. That is, the task of the mechanism is to calculate how many days should be added to the base value, and not how many to take away. This calculation is done by the “mechanical processor”, which consists of a stack of interacting wheels and controls the date wheel.
01-03-2020, 03:25 AM
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