No battery, no charger, no problem. The Marathon SSNAV Auto, reference WW194029SS-0830-KIT, is a self-winding Swiss pilot's watch with a sterile black dial and a black 3-piece rubber strap kit, ready for long trips and far-off time zones.

Travelers often appreciate an automatic for its independence. The Sellita SW200-1 inside winds itself as you move, keeps around 41 hours in reserve and needs nothing more than regular wear to keep going, wherever you happen to be. Pair that with the Navigator's bi-directional 12-hour bezel and you have a capable travel watch: rotate the bezel to align with home time and the hour hand will show both zones at once. Marathon designed that bezel with Kelly Air Force Base in 1986 for U.S. Air Force pilots.

The rubber strap suits travel too. Marathon's FKM 3-piece kit is made in La Chaux-de-Fonds and handles hotel pools, humid cities and sweaty hikes without complaint, while the screw-down crown gives the case 10 ATM of water resistance. At 41mm wide and 11.5mm thick in 316L stainless steel, the SSNAV Auto is compact enough for everyday wear. The sterile black Type II dial uses tritium gas tubes for constant illumination, so you can read it on an overnight flight without pressing anything, and a sapphire crystal protects it.

Travel-Ready Specs: SSNAV Auto WW194029SS-0830-KIT

• Reference: WW194029SS-0830-KIT
• Case: 316L stainless steel, 41mm, 11.5mm, 48mm lug to lug
• Movement: Swiss Sellita SW200-1 automatic, 26 jewels
• Power reserve: roughly 41 hours
• Water resistance: 10 ATM
• Crystal and crown: sapphire; screw-down crown
• Bezel: bi-directional 12-hour for a second time zone
• Dial: sterile black, tritium-lit
• Strap: black FKM 3-piece rubber kit, 20mm

Self-sufficient, quietly capable and happy to cross time zones with you.