Marcus Hanke[PuristSPro Moderator]
11515
Your GST perpetual ...
Oct 11, 2010,07:26 AM
... always was one of my favourites, being among the very small group of
sportive perpetuals. Unfortunately, your titanium version is
practically impossible to find, while in steel, it is a bit easier,
especially the somewhat unique salmon-dial version.
For me, the
IWC perpetual is so important because it (then in the da Vinci) created
an awareness for the complexity of mechanical movements, and that they
remain there, despite the passage of time. The problem of these
indications by small hands is their lack of legibility. Especially, when
the date, which in everyday situations is needed most, is but a hand on
a small subdial, as on the IWC. At my age, reading glasses only to
recognize the date, would be mandatory with this kind of design.
Therefore,
I personally prefer modern disk-based indications, like that of the UN,
GO or the new IWC da Vinci. As a whole, though, they are not so
attractive than the classic hand-based designs, additional to the
technical challenge of the disks' mass inertia during bumps and shocks.
Thin hands do not stress the gears so much.
Regards,
Marcus
Comments:
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Nice write-up, Marcus...
By: watchme : October 7th, 2010-10:17
Breitling still uses the "Caliber 19" in their "Olympus" and Bentley Mark VI Cal 19 models. The Olympus was previously the 1461 (to correspond with the number of days). This module from Dubois Dupraz is one of the only semi-perpetual calendars I know and ...
I hoped to find a nice picture of the Breitling I could use ...
By: Marcus Hanke : October 8th, 2010-06:51
... but all those I found were either too small, too protected or too unsharp. The Breitling is a great watch, I always admired it. However, I would have difficulties reading the small indications today. Regards, Marcus
Fantastic summary!
By: cazalea : October 7th, 2010-13:08
Marcus, Thank you very much for the clear indication of the issues, terms and technologies used in these watches. I especially liked the distinction you made between (a) the complexity of the date-calculating movement and (b) the complexity of the dial in...
Your GST perpetual ...
By: Marcus Hanke : October 11th, 2010-07:26
... always was one of my favourites, being among the very small group of sportive perpetuals. Unfortunately, your titanium version is practically impossible to find, while in steel, it is a bit easier, especially the somewhat unique salmon-dial version. F...
I think...
By: dsgalaxy1 : October 7th, 2010-14:23
that the state of the art for a perpetual calendar is with instantaneous changes of date display.
The instantaneous change is a matter of clever energy management ...
By: Marcus Hanke : October 11th, 2010-07:29
... but has nothing to do with the calendar mechanism. For me, it is more important that a perpetual can be set forward and back ward without damaging the mechanism, but I agree with you that for using the calendar, an instantaneous change of all indicati...
Maybe my memory is cheating me ....
By: Marcus Hanke : October 11th, 2010-23:36
... but I recall having seen all indications jumping at once, when the watch was demonstrated to me. The Moser is instantaneous, but has only two indications (date and month), compared to the the up to five indications of other perpetuals. Regards, Marcus
Thank you Marcus...
By: jporos : October 7th, 2010-20:27
for an illuminating post. The diagrams showing how the date and day/date mechanisms work were most interesting. I wonder if there are similar diagrams for the perpetual calendar movement? Thanks again.
Thank you, Marcus!
By: dxboon : October 8th, 2010-06:53
I very much enjoyed reading this post. It was a great educational piece! Thank you for putting so much time and effort into this article for the benefit of all! Cheers, Daos
Marcus, please let me add my thanks...............
By: Topcat30093 : October 9th, 2010-00:39
For your wonderfully constructed article. Though, you think that you know everything, there is always more that you can learn. And that is certainly true of your article
Thoroughly enjoyable reading
By: rnaden : October 9th, 2010-03:05
Thanks, Marcus, for that insightful and enjoyable write up. It has greatly helped me understand that differences and the make ups of these different calendar mechanisms. Richard
Thank you! I'll try ...
By: Marcus Hanke : October 10th, 2010-01:50
... to continue some time with the description of other complications. Regards, Marcus
Great, Great post!!! Many thanks !
By: COUNT DE MONET : October 9th, 2010-19:49
I found the IWC Davinci always interesting and after having read your post, it opened my eyes for this marvelous watch. Many, many thanks ! Is there another watch that has the same properties as the Davinci ? Regards Moritz
The Master Perpetual by Jaeger LeCoultre ....
By: Marcus Hanke : October 10th, 2010-01:46
... shares the same perpetual calendar mechanism, although without chronograph. However, they offer an equally interesting combination, with an alarm. Regards, and thanks for your kind words, Marcus
Absolutely fabulous
By: Ares501 - Mr Green : October 12th, 2010-02:09
thank you so much for this post sure a one to keep and return to in future Sincerely Damjan
Excellent!
By: Meehna : October 17th, 2010-10:38
Dear Marcus, Thank you for sharing your extensive knowledge with us. You elucidated and distinguished the differences between the different calendar mechanisms in a way that's easy to understand. It's a wonderful reference and a nice review of some of the...
Ulysee Nardin's GMT pp setting properties ...
By: COUNT DE MONET : October 29th, 2010-12:04
Got into this subject again, and read somewhere else that the UN GMT can be adjusted / settled forward and backwards as one likes. I did not read this in your really great post and I am just thinking that this should have been mentioned / stressed a bit m...