DM-WM Watchmakers movement magnifier, this Dome Shaped Magnifier is ideal for magnifying watch movements, simply place over over or on the back of the opened watch case and it will magnify 4x, ideal for quickly assessing automatic & quartz movements as well as battery types, and needed repairs and cleaning. 1.8 Diameter is sufficient for most watch cases and movements. Optical Grade solid acrylic design will not mare or scratch the watch case.

• - Lens Power/Magnification -4x
• - Lens Diameter 1.8" Inch
• - Lens Diopter -12
• - Lens Focal Length 0 Fixed Focused