Canadian-designed and Swiss-made, the Marathon TSAR WW194007SS-0023 is a 41mm quartz dive watch with a story that starts north of the border. Marathon is headquartered in Vaughan, Ontario, assembles its watches in La Chaux-de-Fonds, Switzerland, and built this Search and Rescue line to Canadian Government requirements.

The result is a tool shaped by real rescue work. The bezel is deliberately oversized so a technician wearing gloves can grip and turn it, and it only rotates one way, so an accidental knock can only make it look as though more time has elapsed, never less. The crown screws down behind protective guards. Inside, Swiss ETA F06.115 HeavyDrive quartz powers hands carrying tritium tubes, a light source that glows continuously for years without any charging. A MaraGlo bezel pip and seconds hand round out the low-light picture.

This listing comes on a stainless steel bracelet with a black dial, the classic configuration for a TSAR. The bracelet gives the watch weight and balance that suit a 41mm steel case, and it shrugs off salt water and sweat in a way leather never will. For anyone who appreciates Canada's long relationship with Marathon, which goes back to the RCAF order of 1941, it is an easy watch to admire.

Key Specifications: Marathon WW194007SS-0023

• Family: Large Diver's Quartz, Tritium Search and Rescue (TSAR)
• Case size: 41mm diameter, roughly 14mm thick, 48mm lug-to-lug, 316L steel
• Movement: ETA F06.115 HeavyDrive Swiss quartz
• Rated to 300 meters (30 ATM)
• Sapphire crystal over a black dial with 4:30 date window
• Tritium markers and hour/minute hands; MaraGlo pip and seconds
• One-way 60-minute bezel, 120 clicks; guarded screw-down crown
• Steel bracelet, 20mm between the lugs

Designed in Ontario, built in Switzerland, ready for whatever weather you bring it into.