3.33ct Pair of Round Faceted Sapphires 7.4mm Renata Essence ESD-17: Fine Tip Curved (123mm/4

ESD-17: Fine Tip Curved (123mm/4

Metal movement holder for hand setting and chronograph function checking

This precision Rack-Press is provided with a small slide that allows to block or to free the toothed rack

Helping Hand with Crocodile Clip

Switching Time (Bright to Dark): 1/10000s (Normal Temperature)

3.33ct Pair of Round Faceted Sapphires 7.4mm Renata Essence ESD-17: Fine Tip Curved (123mm/4Sapphire is a variety of the mineral corundum, an aluminium oxide. It is typically blue but fancy coloured sapphires also occur in orange, yellow, green, brown, purple, pink, black and colourless. Red and reddish pink coloured corundum is referred to as ruby. The variety in colours is due to trace amounts of elements such as iron, titanium, chromium, copper and magnesium. Mohs Scale of Hardness: 9 (out of 10). Sources: Mines that have yielded the