Help me identify a perpetual calendar pocket watch

dshumans

NAWCC Member
Sep 17, 2009
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Also worth noting - calendar watches should have the calendar function set when it is between 3:00 and 9:00, because between 10:00 PM and 2:00 AM the calendar wheels under the dial may be engaged for moving the calendar dials and you can damage them by forcing them to move. I have fixed a few perpetual calendar repeater watches that do not have the leap year (4 year) index, but most do. This is likely an annual calendar watch and the only way to tell is to set it for the last day of an non-30 day month and then set the time forwards until the calendar changes. If it jumps to day 1, it is a perpetual calendar. If it does not, it is an annual calendar.
 

ADIAMOND

Registered User
Sep 27, 2021
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I am uncertain whether to start my own thread or pick up here as I have the same question for a watch I have been given. There is a number inside the case of 39056 as well as an 18 Karat and another hallmark I cannot make out. Any information would be appreciated.

1632770004096.png


1632770037866.png
 
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Philip Poniz

Moderator
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NAWCC Member
Feb 22, 2012
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Could you provide us with an under-the-dial photo? All calendars installed on this ebauche that I have seen have only been simple module calendars, not perpetual, not annual. See below. By the way, at the time, annual calendars were not popular.
ZCC BZ C (1).jpg
ZMC BZ C (2) simple cal module.jpg
 

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