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Perpetual calendar
Perpetual Calendar
Producer:
Hemisferium
Design:
Historical
Display:
Weekday
Material:
Brass coated
Dimensions:
D90mm
Weight:
325g
Product:
Perpetual calendar to calculate the weekdays from 1601-2799. Based on the Gregorian calendar.
Price:
54,90 € incl. VAT
available from stock
- Shipping costs included in Germany, EU and Switzerland on any order of 100 Euro or above
- Low price shipping outside the EU by registered letter
- 2 weeks statutory right of return (customised products excluded)
- Hotline: +49-611-185 11 06
Description
Only perpetual calendars meet the basic condition to permit the deduction of any essential data from any other data (year, month, week and day). However, all the analog perpetual calendars known are hardly perpetual since the limit of their calculations is about 50 years. This calendar starts at 1 January 1600 and ends at 31 December 2799. It is based on a repeating cycle of 400 years and a solar cycle of 28 years. It works by means of the "Dominical letter".
Delivery in a presentation box with a user manual in 4 languages (English, French, Italian, Spanish).
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