Swiss Alpine Military Nautilus GMT is a robust stainless-steel GMT watch powered by a Swiss Ronda quartz movement. It pairs a 42 mm case and clear black dial with a GMT function for reliable second-time-zone tracking on the go. Key attributes: Silver | Gold | Black | Stainless steel | 10 ATM (100 m) water resistance | Swiss quartz movement (Ronda 515 GMT) | GMT function | Luminous hands and indices | Folding clasp | Black dial | Bicolour stainless-steel case | Mineral glass | Dimensions & fit: Case diameter: 42 mm | Case height: 11 mm | Weight: 160 g | Bracelet width: 22 mm | Composition & care: Stainless steel | Wipe with a soft cloth. Avoid harsh chemicals and prolonged exposure to salt water; rinse and dry if exposed. Have battery replacements and seal checks performed by a professional.