Ball Watch Company Engineer Hydrocarbon AeroGMT II. DG2018C-SC-BK The Ball Engineer Hydrocarbon AeroGMT II watch collection is one that was designed purposely to withstand the most extreme conditions while looking completely striking on the wrist. This stunning timepiece boasts an impressive range of exclusive patented innovations including a triple folding buckle with an extension system and crown protection which includes a protective plate that slides over the screw-down crown to increase both water and shock resistance. Housed within the impressive 42mm stainless steel case of this Ball Engineer Hydrocarbon AeroGMT II watch is the COSC certified automatic BALL RR1201-C calibre which promises a shock resistance of 7,500Gs and a water resistance of 100 metres.  The scratch resistant sapphire crystal glass sits above a striking black dial set with an impressive 43 micro gas tubes that will glow in the dark for up to 25 years without requiring any recharge. To finish the masculine design, a stainless steel bracelet and folding clasp is added.