Beaches, boats and bright afternoons call for a dial that stays readable in full sun, which is why the Marathon Arctic OSAR-D makes such a good warm-weather companion. Reference WW194006SS-2505 pairs the 41mm Swiss automatic Original Search and Rescue with Date with an Arctic white Type I dial and a stainless steel bracelet.

The Arctic dial was designed for legibility in bright conditions, and on a sunny dock or a glittering reef it does exactly that. The oversized geometric indices are easy to pick out at a glance, and the 1.5x cyclops over the date at 3 o'clock saves squinting. When the sun goes down, MaraGlo on the indices, hands and bezel pip has been charging all day and glows for hours.

It is built to go in the water, not just near it. The brushed 316L case is rated to 300 meters, with a screw-down crown protected by guards and a sapphire crystal. The unidirectional bezel times a snorkel or dive in 120 clicks, and the Swiss Sellita SW200-1 automatic keeps running without a battery. Its heritage, the SAR-D issued to Canadian SAR Techs in the early 2000s, gives it a story to tell over sunset drinks.

Arctic OSAR-D (WW194006SS-2505) Key Specs

• Ref.: WW194006SS-2505
• Arctic white Type I dial, 1.5x cyclops date at 3
• 41mm stainless steel, 13.5mm thick
• Sellita SW200-1 Swiss automatic, ~41-hour reserve, Incabloc
• Water resistance: 300m / 1000ft
• Sapphire crystal; screw-down crown and guards
• MaraGlo on indices, hands and pip
• Stainless steel bracelet, 20mm lugs

Sunshine-ready from the first swim to the last light.