Bergeon - aplanaticwith black plastic setting. With threaded ring. Lenses Ø 25 mm - height 20 mm. Products nameversionmagnificationstrengthitem No.watchmaker loupeaplanatic10x1510610watchmaker loupeaplanatic6.7x1 1/2510611watchmaker loupeaplanatic5.0x2510612watchmaker loupeaplanatic4.0x2 1/2510613watchmaker loupeaplanatic3.3x3510614