Watch case size measure-- what is the exact way to do it?
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  1. #1
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    Watch case size measure-- what is the exact way to do it?

    I'm curious -- on a 3 button chronograph watch. How do I check the case diameter? I have a luxury LE new watch (won't name at present) which is advertised at 42mm but it doesn't feel that big and when I use a digital caliper from one side to the other (including the buttons) I get 43.18 mm-- if I try and exclude the crown i get 40.5m but it's fiddly to know where to measure because of the curves!

    I would appreciate some help.

    Cheers
    turnera1

  2. #2
    Moderator Emeritus Bradjhomes's Avatar
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    Re: Watch case size measure-- what is the exact way to do it?

    Without crown or pushers
    Brad (@bradwatch)
    - appreciating fine affordable watches since 2011



  3. #3
    Member Likestheshiny's Avatar
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    Re: Watch case size measure-- what is the exact way to do it?

    Yeah, excluding the crown(s) is standard, but beyond that there's no "exact way to do it." Crown guards or case bulges can confuse measurements, and you'll sometimes see people measure 2 to 8 to avoid it -- but not always. So, it's not uncommon for the same watch to get a slightly different size depending on how its measured.

    There was a time when the Chr Ward Trident C60 was either 42mm or 43mm depending on which regional website you were on (that's fixed now, right?). Same watch -- just different measurements.

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    Moderator Public Forum John MS's Avatar
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    Re: Watch case size measure-- what is the exact way to do it?

    Make sure you catch the outer edges of the case and try measuring across more than one line around the dial. Replicating the exact advertised measurement may be impossible because of case bumps and number rounding. You may also want to measure the lug-to-lug distance and begin to include that measurement in future watch considerations.
    Last edited by John MS; October 20th, 2015 at 22:15.

  6. #5
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    Re: Watch case size measure-- what is the exact way to do it?

    Hi all, Many thanks for your advise -- i'm thinking that 2 to 8 might be best when there are pushers either side of the crown and so this directly avoids them--interesting nevertheless --i'm just surprised how small this supposedly 42mm case compares to another one I have which is 45.4m-- I guess I will get used to it!

  7. #6
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    Re: Watch case size measure-- what is the exact way to do it?

    Make believe there are no pushers nor crown ..... Name:  Watch Specs Pic.jpg
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    pborrica likes this.
    "Some day I'm going to buy a real wristwatch"

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  8. #7
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    Re: Watch case size measure-- what is the exact way to do it?

    Perfect picture explanation - thank you

  9. #8
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    Probably doesn't apply, but some cases also taper a bit. The Oris Aquis has (if I recall correctly) a 42mm top measurement but a 43mm bottom.

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