The Dumas GMT is an automatic world travel-ready timepiece equipped with the Seiko NH34 GMT automatic movement. A bold study in high-quality sport watch mechanics injected with the style and flair synonymous with the Spinnaker name. With a hexad-shaped solid stainless steel bracelet attached and an extra matching rubber strap, the watch is suitably engineered for all conditions. Specifications: Movement: Japanese Automatic Gmt Case Material: Stainless Steel Case Size (mm): 44.0 Case Thickness (mm): 15.0 Lug to Lug (mm): 48.0 Dial Colour: Black Index & Luminous: Applied Index With Swiss Newlite Lens: Anti Reflection Coated Sapphire Lens Crown Type: Screw Down Band: 22mm Solid Stainless Steel Bracelet With Fold Over Buckle With Safety Lock And Push Button Extra Band: Black Rubber Strap Water Resistance: 30 ATM Weight (g): 200 Warranty: 2 Years International Warranty