The Ball Engineer Hydrocarbon AeroGMT II Ref. DG2018C‑S11C‑BE is a serious tool watch for aviators, globetrotters, and anyone needing rugged functionality with style. It features a durable 42 mm stainless steel case, a bold blue sunburst dial, and a striking black and green sapphire bezel with tritium gas tube illumination. Powered by Ball’s COSC-certified Caliber RR1201‑C automatic GMT movement, the watch tracks up to three time zones, has a 42-hour power reserve, and is shock- and anti-magnetic resistant. It includes Ball’s patented crown protection system and comes on the original stainless steel bracelet with folding clasp. This example is in outstanding 9/10 condition, with most of the original case stickers still intact, and includes its original box and papers. Key Features: Model: Ball Engineer Hydrocarbon AeroGMT II Reference: DG2018C‑S11C‑BE Case Size: 42 mm Case Material: Stainless Steel Bezel: Black & Green Sapphire 24-hour GMT Bezel with Luminous Gas Tubes Dial: Blue Sunburst with Luminous Micro-Gas Tubes on Markers and Hands Movement: Ball Caliber RR1201‑C – Automatic, GMT, COSC-Certified Power Reserve: Approx. 42 Hours Crystal: Sapphire with Anti-Reflective Coating Bracelet: Stainless Steel with Folding Clasp Water Resistance: 100 meters / 330 feet Resistance Ratings: 4,800 A/m anti-magnetic, 7,500 Gs shock resistance Functions: Hours, Minutes, Seconds, Date, GMT / 24-hour Hand, Triple Time Zone Box: Yes Papers: Yes Condition: 9/10 – Most original stickers still intact, minimal wear Year: Circa 2020s