I suspect you'll never be certain unless you try it on, as (in my opinion, anyway) the lug-to-lug is only one part of how the watch looks - case design can make a watch look larger or smaller than the measurement alone would suggest.
@Dammit started
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I suspect you'll never be certain unless you try it on, as (in my opinion, anyway) the lug-to-lug is only one part of how the watch looks - case design can make a watch look larger or smaller than the measurement alone would suggest.