Under Pressure. Ready for Anything.

Due to the current shortage of NH34 movements, GMT watches are available in very limited quantities. We remain committed to offering them at a fair price for our customers. Once this small production run is sold out, no additional GMT models will be available until NH34 movements become readily available again.

The SS-1 GMT takes its name from the USS Holland (SS-1), the Navy's first commissioned submarine and the one that started it all. Inspired by the diesel smoke and grease-stained decks of the early fleet, this watch is built with the same grit, durability, and purpose that defined those who served beneath the surface.

Powered by the NH34 Seiko automatic movement and protected by a sapphire crystal, the SS-1 GMT is engineered for dependable performance. Tested in-house to 100 meters of water resistance, it's built for more than the water—it's equally at home in the shop, on the job site, or wherever the mission takes you.

Built with hardened stainless steel and an aluminum bezel, the SS-1 GMT reflects the straightforward reliability that defines the Tin Can Timepieces collection. No gimmicks. No shortcuts. Just proven materials, dependable engineering, and purpose-built performance.

Time-tested. Purpose-built. Nothing extra.

Specifications

• Movement: NH34 Seiko Automatic Movement
• Case Material: Stainless Steel
• Case Diameter: 41 mm
• Lug-to-Lug: 49.9 mm
• Thickness: 13.8 mm
• Lug Width: 20 mm
• Crystal: Sapphire Crystal
• Water Resistance: Tested In-House to 100M
• Bezel: Aluminum