Ornatus-Mundi
[Zenith]
7136
ISO 8601 lays down the intern. standard for the exchange of date & time-related data
which is quite interesting. Quote from Wikipedia:
The ISO week-numbering year starts at the first day (Monday)
of week 01 and ends at the Sunday before the new ISO year (hence
without overlap or gap). It consists of 52 or 53 full weeks. The ISO
week-numbering year number deviates from the number of the calendar
year (Gregorian year) on a Friday, Saturday, and Sunday, or a Saturday
and Sunday, or just a Sunday, at the start of the calendar year (which
are at the end of the previous ISO week-numbering year) and a Monday,
Tuesday and Wednesday, or a Monday and Tuesday, or just a Monday, at
the end of the calendar year (which are in week 01 of the next ISO
week-numbering year). For Thursdays, the ISO week-numbering year number
is always equal to the calendar year number.
Examples:
- 2008-12-29 is written "2009-W01-1"
- 2010-01-03 is written "2009-W53-7"
The 53-week ISO-week-numbering year can be described by any of the following equivalent definitions:
- all years starting with Thursday, and leap years starting with Wednesday
- years with the dominical letter D, DC or ED (see note below)
- years in which 1 January and/or 31 December is a Thursday
Note: Dominical Letters are letters A, B, C, D, E, F and G assigned to days in a cycle of seven with the letter A always set against 1 January as an aid for finding the day of the week of a given calendar date and in calculating Easter. A common year is assigned the dominical letter of its first Sunday. For example 2003 has January 5 as its first Sunday, so it has dominical letter E. Leap years have two dominical letters: the first for January and most or all of February and the second for March to December, e.g. 2004 has DC.
Best,
Magnus
This message has been edited by Magnus Bosse on 2009-09-24 07:59:44
Can I Keep The Tourbillon "Thing" Going?
As I am posting this, a thought occurs to me. The range of Blancpain Tourbillons is really extraordinary. I haven't done a count of all of the different models, offering different complications alongside the tourbillon itself, but the number would be larg...
Great post and a beautiful watch
Thanks for the education about the numbers of weeks in the year. I was not aware of this semainier either (I am still a newbie, I guess). You mentioned that there were a bunch of other brands with the calendar week complication. So far, I am aware of this...
I know the GO but don’t know the Lange…
…with this complication, respo. Do you know its name? Marcelo
1815 Kalenderwoche (Lange)
Marcelo, I believe it is a LE of 50 in yellow gold. I think it is the 1815 Kalenderwoche. I don't have a photo to share, but perhaps you can find one with a search. I would love to see photos of others. I think perhaps AP has made one, and perhaps some ot...
Here is a press pic...
and of course it has 53 weeks: The watch was issued to celebrate the 150th anniversary of famous Munich retailer Andreas Huber. Best, Magnus...
That's right respo!
I found it. Thanks! What a gorgeous piece - the one in rose gold with gold and blue hands Marcelo
As surprising as Beautiful, Jeff
Suprising, because the Semainier is not a complication we often see, indeed. It is even strange, when you think 2 minutes about it, to conceive such a complication. For what purpose? I would answer " Why not? "!!! The Date, the Day, the Month, ...Why not ...
Its quite frequently used in business in Europe and Latin America...
e.g. to fix delivery dates: "Machine to be shipped week 53" - "Wow, err, that doesn't work as we are closed between Christmas and New Year!" ... Cheers, Magnus
Exactly, Magnus!
I did a consulting service for Unilever and worked six months for ArcelorMittal – both use the business week system. In my opinion this superb Blancpain tourbillon is the ultimate dress watch for a corporate senior manager Marcelo
Isn't that 53 week also known as the ISO date?
I often use a similar system...I now want a watch featuring Julian Days, then everyone can understand... In all seriousness, the JD system is often used in serial production.
ISO 8601 lays down the intern. standard for the exchange of date & time-related data
which is quite interesting. Quote from Wikipedia : The ISO week-numbering year starts at the first day (Monday) of week 01 and ends at the Sunday before the new ISO year (hence without overlap or gap). It consists of 52 or 53 full weeks. The ISO week-numb...
Yes please in fact
don't stop :0) BP is in my Top 5 manufactures list Thank you for sharing. Looking forward more nice pictures of nice pieces Damjan