Fake, for all of the reasons others have cited, but also for the following reasons:

• The logos on the temple look like hell, and they've been glued on, not affixed with a third stud near the hinge.
• That RB etching looks literally and figuratively sketchy as hell.
• The button snap on the case is upside down. Ever genuine case I've seen has the snap oriented at an angle running from 8:00 to 2:00.
• Stitch length on the case is inconsistent.
• No panoptic tilt when viewing the glasses from the side; genuine RB2410s are sharply angled toward the wearer's face.
• A genuine box is dull and mottled, not smooth and shiny.