551 is a non-date movement although the watch clearly has a date, I actually had a double take looking at the lugs... at one point that thing was a dogleg case, I almost thought it was one of the curved lug cases from the pics until seeing the side of the lug where its been polished so hard its worn right through the gold capping. That's meant to be a highly faceted / sharp edged case believe it or not.
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