Small, accurate and almost indestructible, the Marathon MSAR WW194027SS-0507 is an excellent watch to pack for any trip. This 36mm Medium Search and Rescue quartz diver comes with an Arctic white Standard-Issue dial and a stainless steel bracelet, and it is designed to keep running and stay readable wherever you take it.

Swiss quartz is the hero of this story. The ETA F06.115 HeavyDrive movement drives the hands with high torque, keeps accurate time without winding, and has an end-of-life indicator to tell you when a battery is getting low, so there are no surprises a thousand miles from home. Combine that with tritium gas tubes on the markers and hands, which glow without charging for years, and you have a watch you can read in a dark tent, a hotel room or an overnight train.

The compact 36mm case, just 12.5mm thick, is comfortable during long travel days and hardly noticeable under a jacket sleeve. It's rated to 300 meters with a guarded screw-down crown, so snorkeling, rainstorms and hotel pools are no concern. The white Arctic dial carries no government markings and reads crisply in bright sun on a beach or a ski slope.

Marathon WW194027SS-0507 Specifications

• Model: 36mm MSAR Medium Diver's Quartz
• Swiss ETA F06.115 HeavyDrive quartz, end-of-life battery indicator
• 316L steel case, 12.5mm thick, 18mm lugs
• 30 ATM / 1,000 feet
• Sapphire crystal
• Arctic white dial without government markings, date at 4:30
• Tritium on markers and hour/minute hands; MaraGlo bezel pip and seconds
• Unidirectional 60-minute bezel, 120 clicks
• Stainless steel bracelet

Pack it once and stop thinking about it.