NOUN
- a chart or mechanical device that indicates the days of the week corresponding to any given date over a long period of years
How To Use perpetual calendar In A Sentence
- The dial has been skeletonised to reveal the perpetual calendar tourbillon calibre 461 in all its mechanical glory. Times, Sunday Times
- Now it has watches of almost all classes – from conventional automatic to perpetual calendar.
- It's self winding, has a minute repeater, perpetual calendar, equation of time, jumping hour, power reserve indicator, and a bimetallic thermometer – everything but MMS messaging.
- One of the results of his diversion was an 1887 perpetual calendar algorithm for calculating the day of the week for a given date.
- It's self winding, has a minute repeater, perpetual calendar, equation of time, jumping hour, power reserve indicator, and a bimetallic thermometer – everything but MMS messaging.
- Patek Philippe Platinum And Diamond-Set Perpetual Calendar Chronograph Wristwatch With Register, Moon-Phases And Leap Year Indication, c. 2010, Ref 5971P.
- This is the JLC Reverso Grande Complication à Triptych, Tourbillon with in-house escapement sideral time, perpetual calendar with equation of time with zodiac signs and sunrise and sunset indications. Jaeger Le-Coultre, Reverso Grande Complication à Triptych
- It has three alarms, three time zones and a perpetual calendar. Times, Sunday Times
- It has three alarms, three time zones and a perpetual calendar. Times, Sunday Times
- It has three alarms, three time zones and a perpetual calendar. Times, Sunday Times