Rotate North

'Terrain Black' Cat.4 Field Watch (38mm) | Pitch Black NATO x Limited Edition

Sale price Price £210.00 Regular price

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The Terrain is our contemporary take on the classic 20th Century service issue watch. The 'Terrain Black' Cat.4 edition is inspired by the original 1960s Vietnam watch design specifications, with fully automatic 24-jewel movement and plated in non-reflective PVD.

Rotate North's design principles; purpose, performance and planet, have informed every detail of the Terrain. The black dial is protected by authentic plexiglass/acrylic, with the hands and markers set in LumiNova, ensuring legibility whatever the conditions. 

Water-resistant to 5 ATM (50 metres, 165 feet), you can take the Terrain with you on even the most testing hiking, climbing, or wild swimming expedition. However, it's also an easy watch to wear every day, comfortable and understated.

The Pitch Black NATO edition is distinguished by its black NATO-style ballistic nylon strap.


The Terrain Black is powered by a self-winding NH35a, 21,600 bhp 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, 21,600 bph (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 second hands, 24-hour format


Water resistant to 5 ATM (50 metres), the Terrain's 316L Black PVD-plated stainless steel case is fitted with a pressurised screw-down caseback and screw-down crown. 

CASE ARCHITECTURE | Screw-down case back 

WIDTH | 36 mm (excluding crown) / 38 mm (including crown) 

LUG-TO-LUG | 43 mm / STRAP WIDTH | 18 mm 

WEIGHT | 70 grams (excluding strap) 

CASE THICKNESS | 12.9 mm (measured at the centre of the watch) 

CASE MATERIAL | 316L Black PVD-plated stainless steel  

GLASS | Plexiglass / Acrylic 

CROWN | Screw-down 

WATER RESISTANCE | Waterproof to 50 metres / 165 feet


Finished in plain black, this band is made from fast-drying ballistic nylon that can easily be removed from the watch, and washed and dried within minutes. The robust, durable feel is completed with stainless steel fittings and buckle components with a satin finish.

Designed to hold the watch securely under the most testing circumstances, this strap is durable, breathable and comfortable enough to wear every day.

COLOUR | Seal Black (black)

LENGTH | 300 mm 

COMPATIBILITY | 18 mm Lug Width 

STRAP MATERIAL | Ballistic Nylon 


CLASP STYLE | Buckle (no monogram)

CLASP MATERIAL | Black PVD Coated Stainless Steel (matt black finish)

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24 Month warranty

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