Can an ETA 2824 with a Dubois Depraz 9000 complication have a perpetual calendar?

Grumpyguy · Jul 22, 2013

Just curious, saw a Louis Erard, which has a full calendar, advertised as having a perpetual calendar. It has the ETA 2824 with the DD 9000 complication bolted on.

I spent about 40 minutes scouring the net and couldn't find any indication that the Dubois Depraz 9000 mechanism is perpetual. Louis Erard's site is pretty much an exercise in futility in terms of finding any detailed description of the mechanisms in their watches, but I would assume, if you offered a perpetual calendar you would scream it from the mountain tops.

So anyway, just curious as a local jeweler has a couple of these as well.

My guess is that the DD 9000 is akin to the ETA 7751 and just offers a complete calendar.

If I'm mistaken, I'd like to read up on it with any links you can provide.

Thanks,

Bryan

Watchbreath · Jul 22, 2013

:001_unsure: Just might be the module that Nivrel uses for it's perpetual calendar, but they use
a 2892 as a driver. Nivrel has used the DD 9252 and 9310 for it's annuals. A mechanical
perpetual for under 10K, not too shabby and it's programmed out to 2099.

~tc~ · Jul 23, 2013

Just look for the year/leap indicator

ppalac · Jul 28, 2013

Until recently, I didn't know anything about Dubois-Depraz. I surfed online a bit, but wasn't able to get too much info and details on the movement/modules they provide. If anyone can share some info or links, I'd personally appreciate it.

Can an ETA 2824 with a Dubois Depraz 9000 complication have a perpetual calendar?

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