New 20X Eye Loupe. This is a new triplet lens loupe with a round chrome plated swing-away case. Handy and easy to carry. The shape allows it to rest comfortably in the eye socket. This has become the standard style of loupe used in the watch making industry and is excellent for any application where magnification is needed. In terms of performance, it is second to none. It is 20X power and has a focal distance of 1/2" (13 mm). The lens has a 21 mm diameter. Comes with a leather case with snap.