Title:
A true 10, 000 chronicle device
Document Type and Number:
Japanese Patent JP6209197
Kind Code:
B2
Abstract:
Calendar mechanism for timepieces, displaying the duration of the current month and comprising a month cam whose periphery is accessible to a feeler-spindle of a perpetual calendar device to obtain the duration of the current month, this calendar mechanism and the month cam being updated monthly on each current month change by the perpetual calendar device, the month cam is generalised to an integer number of years each including a virtual 28-day month of February, the calendar mechanism includes a leap year mechanism, external to the month cam, and which is arranged to insert radially, every four years in February, a first corrector finger between the periphery and the feeler-spindle to inform the latter that the current month of February has 29 days instead of 28.
Inventors:
Eric Geller
Application Number:
JP2015235457A
Publication Date:
October 04, 2017
Filing Date:
December 02, 2015
Export Citation:
Assignee:
Monterey Breguet SR
International Classes:
G04B19/253
Domestic Patent References:
| JP51150365A | ||||
| JP2007218914A |
Foreign References:
| US2170408 |
Attorney, Agent or Firm:
Masaki Yamakawa
Shigeki Yamakawa
Shigeki Yamakawa
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