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'Tempest' Automatic Navigator Watch (40mm) | Optic Yellow

Sale price Price £295.00 Regular price

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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 waterproof NATO strap made in Italy from sustainably-sourced rubber.

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 Optic Yellow edition is distinguished by its vibrant yellow rubber NATO-style strap.


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


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


Made from sustainable rubber in Veneto, Northern Italy, our straps are manufactured in partnership with a small family business that prides themselves on a long-standing tradition of making accessories for the Swiss watch industry as well as many of the world’s finest brands.

This NBR compound rubber performance strap is 100% vegan and toughened to withstand the most active outdoor and ocean pursuits. The classic NATO-style strap comes with pre-punched holes, and a secondary strap for added comfort and support. 

COLOUR | Optic Yellow (yellow)

LENGTH | 275 mm 

COMPATIBILITY | 20 mm Lug Width 

STRAP MATERIAL | Natural Rubber 

STRAP STYLE | Single Piece NATO 

CLASP STYLE | Buckle (with monogram)

CLASP MATERIAL | Stainless Steel (satin finish)

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24 Month warranty

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