White dial, black rubber, steel case: the Marathon TSAR WW194007SS-0530 is the high-contrast, outdoors-ready version of the 41mm Tritium Search and Rescue diver. With its Arctic dial on a black 3-piece rubber strap, it is equally at home on a ski hill, a portage trail or a dive boat.

Rubber suits the Arctic TSAR particularly well. It handles cold without stiffening the way some leathers do, it doesn't trap snow or sand like a bracelet's links can, and it keeps the watch light enough to forget about during a long day outdoors. This one is a Marathon 3-piece FKM rubber strap kit made in La Chaux-de-Fonds, with a standard buckle and a design that lets the watch sit securely on the wrist or over a thin layer.

The white dial was developed for clarity in bright and snowy conditions, and the tritium tubes on the markers and hands keep it legible after the light goes. Inside, a Swiss ETA F06.115 HeavyDrive quartz movement keeps accurate time whether it rides in a backpack or on your wrist, and its screw-down crown and 300-meter rating mean weather simply isn't a factor.

Arctic TSAR on Rubber: WW194007SS-0530 Specs

• Reference: Marathon WW194007SS-0530
• 41mm Large Diver's Quartz (TSAR), 316L steel, about 14mm thick
• 48mm lug to lug, 20mm lug width
• Arctic white dial with 4:30 date
• Swiss ETA F06.115 HeavyDrive quartz, end-of-life indicator
• Tritium gas tubes and MaraGlo illumination
• 300 meters / 30 ATM, sapphire crystal, screw-down crown
• Black 3-piece FKM rubber strap

Light on the wrist, easy to read, and ready for the cold.