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Nox, Genuine Leather Executive Office Chair
4.77/5.0
13 reviews
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Description
Description
The Serene Nox combines leather and metal in harmony, with design details that merge understated luxury and everyday comfort, bringing refinement and a commanding presence to any office space.
Features
Features
- One-Piece Design: The integrated backrest and headrest follow the natural curve of the spine, providing full support and relieving neck and shoulder tension.
- Plush Comfort: A supportive lumbar curve and suspended seating design deliver stable yet weightless comfort.
- Durable Genuine Leather: Smooth and easy to care for, its refined surface offers lasting comfort with a polished, modern look.
- Resilient Seat Cushion: High-density foam provides a soft and supportive seat for lasting comfort during long hours of sitting.
- Tailored Adjustments: 3 tilt and lock settings with a 97-121° tilt range let you personalize your seating position.
Specification
Specification
- SKU: ERK-OC66-B
- Style/Type: Executive Office Chair
- Color: Black
- General Dimensions: 26.77" D x 26.77" W x 48-51.5" H
- Item Weight: 42.88 lbs.
- Materials: Genuine Napa leather (touch areas); PU (non-touch)
- Recommended Height: 4‘9‘’-6’1‘’
- Max Weight Capacity: 300 lbs.
- Seat Height: 19''-22.2"
- Seat Depth: 18''-20''
- Seat Width: 21"
- Cushion thickness:3.14"
- Armrest Type: Fixed Armrests
- Tilt Mechanism: 97°-121°(3 positions locking)
- Hydraulics Gas Piston: Class 4
- Box Dimensions: 38.58" L x 28.35" W x 18.9" H
- Box Weight: 63.49 lbs.
Shipping
Shipping
Free Standard Shipping (Lower 48 US States Only)
- Standard Shipping: Transit time is approximately 2-7 business days (not guaranteed). FedEx/UPS will drop off the item(s) at the first ground-level entryway outside your home (front door, porch, or garage).
- Large Items: Shipped via LTL Freight and typically arrive within 7-18 business days. The carrier will unload the item(s) at the curb or loading area, but this service does not include unpacking, assembly, or debris removal. You’ll need to move the item(s) inside, so please plan accordingly.
- Want a White Glove Experience? We offer premium delivery services, including white glove options, for an additional fee. Contact our customer experience team to learn more.
- Obvious Shipping Damage
If you receive any LTL shipment and notice any damages to the outer cartons, please refuse the delivery immediately, do not sign any paperwork provided by the carrier, and contact us right away. - Live in Hawaii or Alaska? While free shipping isn’t available, we can still ship to you! Reach out to our customer experience team for a custom quote.
Installation Manual
Installation Manual
- Assembly Instructions: view here



I tested this genuine leather office chair - and the Eureka Ergonomic Nox is the perfect fit for executives
The Eureka Nox came in quality packaging, nice protective material and a quality box. The setup was quick and painless, only taking about 20 minutes by myself to build.
This chair doesn't scream but confidently whispers high-end, professional office chair. Whether that is a top-tier executive or Bondian super-villain, I cannot tell yet. It's a bold design, all about strong lines gently tapering at the lumbar support, sweeping padded armrests that glide around the chair to the seat base. It's striking in all the right ways.
The chair has simple, yet capable controls, offering tilt and lock options, height adjustments, and tension control. The lumbar section of the chair provides a good amount of support, but doesn't affect that silhouette, remaining cool, calm, unobtrusive. One part that I noticed even more than the lumbar is the waterfall-style seat, caressing the sides of my legs and alleviating pressure at the same time.
All around, this chair is supportive, firm, yet comfortable, and minimal, all while looking beautiful. It’s perfect for a professional office, an executive suite, the Batcave.

This chair fits my home office setup perfectly!
The clean, modern look goes really well with my desk and the natural light coming in, and it instantly made the space feel more put together. The leather feels smooth and high quality, and after a few full workdays, I can say it’s genuinely comfortable. The one-piece backrest and headrest support my posture really naturally, and I don’t get that usual neck or shoulder tension anymore.
I also like the recline — it’s not too loose, and being able to lock it at different angles (I usually keep it slightly leaned back) makes long hours at the desk a lot easier. The seat has a nice balance too, soft but still supportive. Overall, it just feels like a well-designed chair for real daily use at home office, not just something that looks good.
Suspended Support
Balanced pressure relief with a light, floating feel.
Lumbar Back Detailing
Precision-crafted linear patterns on the lumbar area enhance the chair’s premium aesthetic and distinctive character.
Waterfall Seat Cushion
Contoured cushion cradles the hips and relieves pressure on the legs.
Recline and Lock
Sit back and relax; literally. With a max tilt angle of 121 degrees, naps are welcomed.
First off this chair is way smaller than it appears in pictures. The leather is nice and seems to be built well. The seat only raises to about 22” so if you are 6’ or over its not going to work very well. I think I will replace the gas cylinder for one that will raise the seat higher. The control levers are plastic and feel like they will break if you put any real pressure on them. The seat is rather narrow as well. It’s an attractive chair and seems fairly well made (other than the control levers) but if I had had the opportunity to see it before purchasing, I would have chosen something else.
Dear Robert Dunn,
Thank you for sharing your feedback. While we are glad to hear you value the quality of the leather and the aesthetic of the chair, we appreciate you highlighting these specific sizing and design areas for improvement.
It is truly our honor to be chosen by a customer like you who possesses a strong appreciation for product quality and aesthetic design. We have noted your comments regarding the cylinder height range, seat width, and control lever materials. Feedback like yours is invaluable as we continually review our component specifications and product information to help future users make the best choice for their build.
If there is anything else we can assist you with, please feel free to contact us directly at 1-844-416-2060 or via email at customerservice@eurekaergonomic.com.
Best regards,
The Eureka Ergonomic Team
Nox, Genuine Leather Executive Office Chair
I love how the backrest and headrest naturally follow my spine—after a full day of work, my neck and shoulders feel much less tense. It also looks elegant in my office, definitely worth the buy.
I love the clean look without a separate headrest. The seat feeling is real—it's supportive but you don't feel stuck. The leather is a big step up from the faux stuff on my old chair.
The cushion is soft but supportive, and the backrest keeps me aligned. I could sit here all day without discomfort.
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