The Arctic name is more than a color code at Marathon. It describes a white dial engineered to stay readable in snow and bright light, and the Marathon 46mm OSAR-D Arctic Edition WW194037SS-2506 brings that purpose to the largest, most advanced version of the Original Search and Rescue with Date, here on a stainless steel bracelet.

The OSAR-D story starts with Canadian Search and Rescue Technicians, who wore the original SAR-D in the early 2000s. Marathon re-engineered the design and relaunched it in 2024 with larger geometric indices, MaraGlo lume and an improved cyclops date, then introduced the Arctic dial in 2025. The same year, the 46mm size arrived for larger wrists, debuting the Sellita SW600 b in the SAR series with a 62-hour power reserve. This listing combines both of those milestones.

Marathon's broader heritage adds depth: a family-owned company since 1904, a first military order from the RCAF in 1941, and SAR watches developed to Canadian Government requirements. On the wrist, that translates to a brushed 316L case 17mm thick and 55mm lug to lug, a sapphire crystal with a 1.5x cyclops over the date at 3, a guarded screw-down crown, an oversized 120-click bezel and 300 meters of water resistance. The 22mm lugs carry the stainless steel bracelet.

Heritage and Hardware: WW194037SS-2506

• Model: Marathon 46mm OSAR-D Arctic Edition
• Case: 46mm brushed 316L stainless steel, 17mm thick, 55mm lug to lug
• Movement: Swiss Sellita SW600 b automatic, 24 jewels, Incabloc, 62-hour reserve
• Water resistance: 300m
• Crystal: sapphire
• Lume: MaraGlo on indices, hands and pip
• Dial: Arctic white, date at 3 with 1.5x cyclops
• Bracelet: stainless steel, 22mm

Two decades of rescue heritage in one bright, capable watch.