

Let me start by combining the image side by side and let everyone review
The left is the Nivrel, and on the right the MB.
They are very similar BUT they are not the same. Besides the different finishing, the most obvious change is the leap year function.

And here is another for everyone to consider
The left is the MB, the right is a Chronoswiss Perpetual Calendar DD module.
They are even more similar to one another BUT, again, not the same at the leap year function and the moonphase display

These two photos highlight exactly why we are "splitting hairs".
The math and engineering behind the gearing for all perpetuals are well known. Given similar layouts, there will only be minute changes possible. Especially at DD where this is one of their specialties, it would only make sense from a cost and future servicing perspective, to make minimal changes.
I believe, Goldenlutin, this is where we are "splitting hairs".
Yes, the DD perpetual modules are mass produced. Yes the DD modules all have the same functions. And yes they are very similar. And of course since these complications are modular in construction, all the "display back photos" will the be same depending on which base movement is chosen to power it.
BUT the modules themselves are NOT THE SAME. The Nivrel and Chronoswiss are different from each other and both are different from Montblanc.
Now Montblanc and DD can claim exclusivity based on these small changes but nowhere does Montblanc claim that the Heritage Perpetual is technically superior than other perpetuals out there based on the slight variation.
That's the point I was trying to make. The only aspect of your comments that I'm disagreeing with is your assertion that all DD modules are the same and it is obvious they are not.
Please don't take offense. Trust me when I tell you that the first thing I did when I read Montblanc's press release was to pull out the three under-the-dial photos of the DD perpetual calendar modules that I had in my personal archives to make the comparisons. These three photos are the ones I've shown in this thread. Yes, the modules are very similar but the claims made on the press release are technically correct.
And also I've reached out to Montblanc to ask specifically if anything else was changed besides what we can see in these photos. I will post their response, if different than what I've pointed out, here for you and all PuristS to reference when they respond.
Cheers, Mike
This message has been edited by mkt33 on 2014-09-03 18:56:43
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Great review Oliver! Very enjoyable review of the Montblanc Mesterstruck Heritage Perpetual Calendar. And good job to MB for producing a relatively affordable perpetual calendar. I have to admit that I agree with some of the comments here about the subdial layout being too close to the center. But I would still like to see this one in person to get a better view and make more precise opinions.
Regards,
ED-209
it probably intrigued you from a watch/value perspective.
i appreciate very much what MTF said about that billion dollar business model.
what will sell may not necessarily be what purists will collect. i guess we've been down that path of discussion several times but always fail to appreciate the watch from a business perspective.
having said that, i agree with Ken about those subdials being too near each other. And what makes it more pronounced is the length of the indices which only serve to emphasize it. the watch also appears to be too flat for me and lacks a certain dimensionality.
also, the 500 hours testing caught my interest. i'm not sure why they went with 500 when a "near" competitor like JLC has their testing at 1000. i wonder if that was better left unsaid.
I enjoyed the review a lot and the comments that went with such a fantastic post.
Thank you.
Best,
Echi