SKU: 70179737725

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

Sale price$105.75 Regular price$117.50
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Description

'Terrain Black' Cat.4 Field Watch (38mm) | Limited EditionThe 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

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.

Movement

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

Model

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

Strap

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 

STRAP STYLE | G10 NATO 

CLASP STYLE | Buckle (no monogram)

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

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 70179737725

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4.2 ★★★★★
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A
Verified Purchase
Amazon Customer
Massapequa, US
★★★★★ 5
It’s absolutely perfect for fetch in the dark!
Size: One-Size-for-Most
We needed to find a glow in the dark ball to run our over active dog after dark ( gets dark now about 5 pm ish) I was hesitant to buy this ball at first. We went to try it out and it totally blew my expectations! The ball really glows, it’s a durable rubber and when it hits the ground it lights up blue and red. Incredibly satisfied and just ordered 2 more. If you need to run your dog in the dark, this is absolutely for you. Highly recommend it
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Reviewed in the United States on December 5, 2025
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Verified Purchase
Lynn
Natrona Heights, US
★★★★★ 5
Dog loved it
Size: One-Size-for-Most
Great! My dog loves taking it outside at night so he can see where it goes easier. Super bouncy, he has had it for over a year now and still not destroyed. Perfect size for his mouth too and easy to clean.
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Reviewed in the United States on February 12, 2026
L
Verified Purchase
Leslie Guffey
Lowell, US
★★★★★ 5
Light up and glow in the dark ball
Size: One-Size-for-Most
Definitely my girls favorite ball 😀. It disappears and I have to buy another one or she goes nuts. Glows in the dark, brighter with more sun. The bounce light up don’t last a real long time, too quick to quit for her but still loves it.
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Reviewed in the United States on May 13, 2026
A
Verified Purchase
AirNelson
Los Angeles, US
★★★★★ 5
Durable & Bright - Great for Heavy Chewers
Size: One-Size-for-Most
Pros: Extremely Durable: Survived an aggressive chewer where tennis balls failed. Dual-Visibility: Features both internal flashing lights and a glow-in-the-dark "chargeable" surface. Perfect Size: Fits comfortably in the mouth of a 40lb medium-sized dog. Same size as a tennis ball. Cons: Battery Life: Unsure how long the internal flashing lights will last (though it has held up well so far).
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Reviewed in the United States on February 8, 2026
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Verified Purchase
Andrea S.
Cuba, US
★★★★★ 5
Great for night time play!
Size: One-Size-for-Most
This ball is great! It is a 2-for-one light up feature so we love the flashing lights and if she drops it in the snow after those lights stop, we can still find it because of the strong glow that gets its charge from the flashing LED lights. Our first one lasted a few years, we lost it on a trip so now back for our second one so we can keep the night time fetch going! She is a golden retriever for size reference. Any bigger of a breed and I would worry it might be too small for her mouth. It’s a bit smaller than a tennis ball. Just don’t make the same mistake I did and let them have it in the house at night, she walked up to my bedside while I was asleep one night and squeezed it to activate it. Those lights are so bright it was a rude awakening!
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Reviewed in the United States on November 11, 2025

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