The 18 carat yellow gold Cober Square One watch. The 18 carat yellow gold case is set with 38 flawless diamonds E/LC. The Cober Square One bracelet is made of crocodile leather. This 18 carat yellow golden watch is designed to be worn on the wrist in the most comfortable way possible and contains a 2892-A2 caliber, which is undeniably one of the best mechanical watch movements of all time. This 18 carat yellow gold Cober Square One watch is also available in 18 carat rose gold and 18 carat white gold. For this Cober Square One watch only fair-trade gold is used.