'Tempest' Automatic Navigator Watch (40mm) | Seal Black

The Tempest is the ultimate stripped back navigator watch designed for pure adventure. Powered by a self-winding NH35A, 21,600 BPH automatic, 24 jewel movement, the Automatic variant is built in Germany, finished in the UK, and comes with a fast-drying ballistic nylon NATO-style strap. The soft-white hands and 24-hour increments set against a black dial provide the best daytime readability. It comes in a captivating 40 mm case comprising an adventure-proof ‘diashock’ movement. With its dive bezel and water resistance of up to 300 meters; it won’t let you down... on land or sea. Our design principles: purpose, performance and planet, have informed every detail of the Tempest. The black dial is protected by the hardest sapphire crystal, with the hands and markers set in LumiNova, ensuring legibility whatever the conditions. Water-resistant to 30 ATM (300 metres, 1,000 feet), you can take the Tempest with you on even the most testing adventure. Hiking, climbing or hitting the open water? The Tempest is a performance watch built for life outdoors. The Seal Black edition is distinguished by its black rubber NATO-style strap. Movement The Tempest is powered by a self-winding NH35A, 21,600 BPH automatic, 24 jewel movement, with 41 hour power reserve when fully wound. This robust, mechanical movement is powered entirely by renewable energy drawn from the wearer's own arm movements - no batteries are required. It is exceptionally accurate, highly serviceable and ready for generations of active use. MOVEMENT | Mechanical, 24 jewels, 21,600bph (6 per second). NH35a Manufacture Seiko WINDING | Bi-directional Self Winding via rotor. Additional Manual Winding POWER RESERVE | Approximately 41 hours SHOCK SYSTEM | Diashock FUNCTIONS | Centre hour, minute and seconds hands. Calendar. Unidirectional rotating bezel Model Water resistance to 30 ATM (300 metres), the Tempest's 316L stainless steel case is fitted with a pressurised screw-down caseback and screw-down crown. CASE ARCHITECTURE | Screw-down case back WIDTH | 40 mm (excluding crown) / 45 mm (including crown) LUG-TO-LUG | 48 mm / STRAP WIDTH | 20 mm WEIGHT | 85 grams (excluding strap) CASE THICKNESS | 15 mm (measured at the centre of the watch) CASE MATERIAL | 316L steel / BEZEL | Rotating 12-hour CRYSTAL | Sapphire Crystal CROWN | Screw-down, water-proofness system WATER RESISTANCE | Waterproof to 300 metres / 1,000 feet Strap Supplied with two inter-changeable straps as standard (Pitch Black and Classic Khaki), each band is made from fast-drying ballistic nylon that can easily be removed from the watch, washed and dried within minutes. The robust, durable feel is completed with stainless steel fittings and buckle components. Designed to hold the watch securely under the most testing circumstances, it's durable, breathable and comfortable enough to wear every day. COLOURS | Pitch Black (black) & Classic Khaki (cream / grey) LENGTH | 280 mm COMPATIBILITY | 20 mm Lug Width STRAP MATERIAL | Ballistic Nylon STRAP STYLE | G10 NATO CLASP STYLE | Buckle (no monogram) CLASP MATERIAL | Stainless Steel