Marathon 46mm Type1 Arctic OSAR-D Automatic Watch Stainless Steel. Building upon that legacy the 41mm OSAR-D was re-engineered and launched in 2024 with upgraded MaraGlo illumination for enhanced visibility larger indices for quick reading and an improved cyclops date window. Yet not all operators nor missions are built the same. A 46mm size was added to the lineup (in both dial colours) to accommodate larger wrist sizes. All OSAR-D models feature Incabloc shock protection and Sellita automatic movements. Notably the 46mm OSAR-D is the first of the SAR series to be equipped with SW600 b movement renowned for its 62-hour power reserve. Built for durability and precision the OSAR-D is mission-ready. Specifications for Marathon 46mm Type1 Arctic OSAR-D Automatic Watch: Manufacturer: Marathon Size: One Size Application: Outdoor Gender: Unisex Dial Color: Black Illumination Color: None Marker/Numeral Color: Maraglo Case Finish: Brushed Case Material: 316L Stainless Steel Case Diameter: 46 mm Bezel Finish: Sapphire Wrist Band Type: Strap Movement: Automatic Illumination Type: Non-Illuminated Water Resistance Level: Waterproof Water Resistant Mark: 300 m Package Contents: Marathon 46mm Type1 Arctic OSAR-D Automatic Watch Marathon WW194037SS-2001: 46mm Type1 Arctic OSAR-D Automatic Watch Stainless Steel