Yeah, that bezel/second crystal has me baffled, too.
Otherwise, a good looking piece. Maybe not $600 good looking...
at the full list price on the tag in the picture it's $648 +/-
unless it's some super special discontinued model, it seems high...
Does that pop-up crystal magnify or something...?
SG is right. It is a field watch and the pop out is used to be a magnifying glass.
More details here:
Lots to like about the watch I think.
You have my full support....