This: http://forums.watchnet.com/index.php?t=tree&th=609147¬ify=1&rid=0&opt=on&mid=697128 is. cool.
Something to do with automated (optical) assessment of accuracy. Someone explained this on some forum somewhere but I'll be darned if I can find it (or remember it exactly).
Was first posted and discussed here. www.omegaforums.net/threads/zenith-caliber-707-no-601.11593/#post-134991