Presidium Electronic Gemstone Gauge Elgin 855 It reads vibrations per hour

It reads vibrations per hour

Aurore 152

These wheels are grit 800 (fine)

CP-0852 Movement Casing Clamp for Hermle FHS 771 RIGHT (factory # E001-4090R)

Battery: 395

Presidium Electronic Gemstone Gauge Elgin 855 It reads vibrations per hourPresidium Electronic Gemstone Gauge A convenient digital gauge with precise accuracy, to measure gemstone dimensions and gives direct carat conversion (with precision to 3 decimal places) for round brilliant cut diamonds. Its touch button zeroing allows the convenience of resetting to zero at any measurement point. An attachment for high setting jewelry provided as an accessory. Compact protective case included with auto magnetic power off when placed