Built as a duty watch, the Marathon JSAR WW194018SS-0109 is equally at home on a job site, a patrol boat or a fishing trip. This 46mm Jumbo Search and Rescue diver, with a matte black Standard-Issue dial and a stainless steel bracelet, runs on Swiss quartz and is designed to take a beating without needing any attention.

Work watches live hard lives, so the details matter. The JSAR's sapphire crystal resists scratches far better than mineral glass. Its guarded screw-down crown seals out water and dust and is shielded from knocks. Its unidirectional bezel, oversized and knurled, can be gripped with work gloves to time a task, a break or a curing compound. And its Swiss ETA F07.115 HeavyDrive quartz movement includes an end-of-life indicator, so a battery change is something you plan rather than discover.

The matte black Standard-Issue dial has no government markings and keeps reflections to a minimum, with MaraGlo lume on the hands and markers for low-light shifts. Marathon designed this model for provincial police services across Canada, and that pedigree shows in how straightforward and durable it is.

JSAR WW194018SS-0109 Work-Ready Specs

• Model: Marathon 46mm JSAR (Le Grand Plongeur), Standard-Issue
• Movement: ETA F07.115 HeavyDrive Swiss quartz
• Case: 316L stainless, around 17.5mm thick, 55mm lug to lug
• 300m / 30 ATM water resistance
• Crystal: sapphire
• Dial: matte black, date at 4:30
• Lume: MaraGlo
• Bracelet: stainless steel, 22mm lugs

Clock in, clock out, and let the watch handle the rest.