Large wrists deserve a dive watch with real presence, not one that looks like a coin perched on a forearm. The Marathon 46mm OSAR-D WW194037SS-2002 was added to the lineup in 2025 for exactly that reason, delivering a bold black-dial Swiss automatic diver on a stainless steel bracelet.

Scale changes everything about how a watch reads. On the 46mm OSAR-D, the geometric indices are big and confident, the hands are broad, and the 1.5x cyclops over the date at 3 o'clock makes the numerals jump off the dial. The case is 17mm thick and spans 55mm from lug to lug, with 22mm lugs that let the steel bracelet match the watch's stature. For wearers who find 40mm divers undersized, the balance here simply feels right.

Inside is the Sellita SW600 b automatic movement with 24 jewels, Incabloc shock protection and a 62-hour power reserve, the first movement of its kind in a Marathon SAR model. MaraGlo lume on the indices, hands and bezel pip glows after charging in light. All the hallmarks of Marathon's search-and-rescue design remain, including a sapphire crystal, a screw-down crown with guards, an oversized 60-minute bezel for gloved hands and 300 meters of water resistance.

Built Big: WW194037SS-2002 Specifications

• Model: Marathon 46mm OSAR-D (Original SAR with Date)
• Diameter: 46mm
• Thickness and length: 17mm thick, 55mm lug to lug
• Lug width: 22mm, stainless steel bracelet
• Movement: Sellita SW600 b Swiss automatic, 62 hours of reserve
• Water resistance: 300 meters
• Crystal: sapphire, magnified date at 3
• Lume: MaraGlo

Sized for the wrists that most dive watches forget.