Measurement

Thread: Measurement

Page 1 of 2 1 2 LastLast
Results 1 to 10 of 11
  1. #1
    Member
    Join Date
    Feb 2006
    Posts
    4,137

    Measurement

    Can anybody please tell me, what´s the meaning of "16 size" here ?................... yellow gold filled case, 16 size measuring 49mm.............

    and do they use it for cases only ? Or for movements as well ? Only in US ?

    Thanx

    louis

  2. #2
    Member JohnF's Avatar
    Join Date
    Feb 2006
    Location
    Oberstedten, Germany
    Posts
    9,650

    Re: Measurement

    Hi -

    It's the US measurement system for pocket watch calibers. Hence it's for the movement, which determines the size of the case, and it was used mainly in the US, either from manufacturers in the US or importers.

    Has to do with the "ligne" measurement system...one of the archaic systems that was once in use and has slipped somewhat in popularity. Like furlongs.

    JohnF
    コスト下げ やる気も一緒に 下げられる


  3. #3
    Member
    Join Date
    Feb 2006
    Posts
    4,137

    Re: Measurement

    Quote Originally Posted by JohnF View Post
    Hi -

    It's the US measurement system for pocket watch calibers. Hence it's for the movement, which determines the size of the case, and it was used mainly in the US, either from manufacturers in the US or importers.

    Has to do with the "ligne" measurement system...one of the archaic systems that was once in use and has slipped somewhat in popularity. Like furlongs.

    JohnF
    How can this be, when 16´´´( ligne ) is 36 mm ?

  4. Remove Advertisements
    WatchUSeek.com
    Advertisements
     

  5. #4
    Member Marrick's Avatar
    Join Date
    May 2007
    Location
    East Yorkshire, UK
    Posts
    7,743

    Re: Measurement

    Have a look here:

    http://members.iinet.net.au/~fotoplot/tech/wmms.html

    as it says 'American watch manufacturers used to indicate the dimensions of their movements, by means of their own unique "Size" gauge. The "SIZE", as a unit of measurement, had its basis in their old "0" size movement. This movement measures 1" + 5/30" in diameter. Each difference in diameter of 1/30" accounts for each size smaller or larger than the starting point of the system, ie. the "0" size watch movement. Thus a "1" size movement would be 1" + 5/30" +1/30", or 1"+ 6/30" (or 1.2") and a "6" size movement would be 1 + 5/30 + 6/30", or 1 + 11/30" (or 1.366"). Watch movements smaller than the "0" size are designated by adding zeros to the size. Thus a movement one size smaller than the "0" would be a 2/0 size movement and would measure 1" + 5/30" - 1/30", the 3/0 size would then measure 1" +5/30" - 3/30".'

    BTW the double quotation marks symbol - " - is used for inches, and sometimes for lignes, but really it should be a triple for lignes.


    Last edited by Marrick; April 4th, 2010 at 00:59.
    Everybody is ignorant, only on different subjects."

    Will Rogers (1879 - 1935)


    Please don't PM me to ask for a valuation - I won't attempt one.

  6. #5
    Member
    Join Date
    Mar 2006
    Location
    Wegberg, Germany
    Posts
    3,641

    Re: Measurement

    Hi Marrick,
    Quote Originally Posted by Marrick View Post

    BTW the double quotation marks symbol - " - is used for both lignes and inches.
    don't agree; most use triple quotes (''') for the Paris ligne.

    Here a comparison of measurement systems for movements:
    http://www.ranfft.de/uhr/info-mass-e.html

    Regards, Roland Ranfft

  7. #6
    Member
    Join Date
    Feb 2006
    Posts
    4,137

    Re: Measurement

    That sounds much better, thanx.

  8. #7
    Member Eeeb's Avatar
    Join Date
    Jul 2007
    Location
    Great Lakes - USofA
    Posts
    18,123

    Re: Measurement

    Quote Originally Posted by JohnF View Post
    ...
    ...one of the archaic systems that was once in use and has slipped somewhat in popularity. Like furlongs.
    I like furlongs! I measure my walking speed in furlongs per fortnight...

    ... you can see why I'm getting new knees
    "Forever is composed of nows." - Emily Dickinson

    "The watch has to be surrounded by a history.
    You need more than just a great design. You need to create an atmosphere around the product.
    Who is the company behind it? Why are they using this material?
    People need to be able to identify the watch with themselves. It's based on emotion." - Ralph Furter

    ...that's just my opinion and I've been wrong before and will be again and might be now!

  9. #8
    Member AbslomRob's Avatar
    Join Date
    Jun 2009
    Location
    Ottawa, Ontario, Canada, Canada
    Posts
    5,315

    Re: Measurement

    Still looking for a watch that gives time in bells...
    My growing collection of "affordable" vintages: http://www.abslomrob.com

  10. #9
    Member Eeeb's Avatar
    Join Date
    Jul 2007
    Location
    Great Lakes - USofA
    Posts
    18,123

    Re: Measurement

    Quote Originally Posted by AbslomRob View Post
    Still looking for a watch that gives time in bells...
    Watches???

    Clocks!!!
    "Forever is composed of nows." - Emily Dickinson

    "The watch has to be surrounded by a history.
    You need more than just a great design. You need to create an atmosphere around the product.
    Who is the company behind it? Why are they using this material?
    People need to be able to identify the watch with themselves. It's based on emotion." - Ralph Furter

    ...that's just my opinion and I've been wrong before and will be again and might be now!

  11. #10
    Member AbslomRob's Avatar
    Join Date
    Jun 2009
    Location
    Ottawa, Ontario, Canada, Canada
    Posts
    5,315

    Re: Measurement

    Tried strapping one of those to my wrist, but it hurt after a few minutes. And it only worked if i held my arm in one position. Very inconvienient.
    My growing collection of "affordable" vintages: http://www.abslomrob.com

Page 1 of 2 1 2 LastLast

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

    Posting Permissions

    • You may not post new threads
    • You may not post replies
    • You may not post attachments
    • You may not edit your posts
    •