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HKM-140371 Ergonomic Black Leather High Back Executive Swivel Office Chair
HKM-140371 Ergonomic Black Leather High Back Executive Swivel Office Chair
HKM-140371 Ergonomic Black Leather High Back Executive Swivel Office Chair
HKM-140371 Ergonomic Black Leather High Back Executive Swivel Office Chair
HKM-140371 Ergonomic Black Leather High Back Executive Swivel Office Chair
HKM-140371 Ergonomic Black Leather High Back Executive Swivel Office Chair
HKM-140371 Ergonomic Black Leather High Back Executive Swivel Office Chair

Office Chairs >>

HKM-140371 Ergonomic Black Leather High Back Executive Swivel Office Chair


$699.99
Color Options:
- Default
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In Stock | Secure Checkout | Express Delivery

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📞 +1 (209) 280-3200
✉️ support@hekomart.com
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HKM-140371 Ergonomic Executive Chair

High back black leather swivel office chair — meticulously engineered for superior spinal support, refined aesthetics, and all-day comfort in demanding professional environments.

The HKM-140371 represents a thoughtful convergence of executive sophistication and ergonomic science. Wrapped in premium black leather with a commanding high back silhouette, this chair is purpose-built for professionals who spend extended hours at their desks — whether orchestrating high-stakes meetings, diving into analytical deep work, or steering creative projects from concept to completion.

Every contour, adjustment mechanism, and material choice has been evaluated through the lens of occupational wellness. The result is a seating solution that not only elevates the visual caliber of your workspace but actively supports musculoskeletal health through intelligent load distribution and dynamic sitting encouragement.

Core Technology

Precision Spinal Support System

Biomechanically informed design that works with your body, not against it.

High Back Lumbar Alignment
The extended backrest is sculpted to mirror the natural S-curve of the human spine. By cradling the lumbar region and providing consistent support up to the thoracic area, it helps maintain neutral pelvic positioning — a key factor in reducing intervertebral disc pressure during prolonged sitting.
Pressure-Reducing Contours
Strategically engineered cushion density zones distribute body weight evenly across the seat pan and backrest. This minimizes peak pressure points — particularly around the ischial tuberosities (sit bones) and sacral area — which are common sources of discomfort in conventional office chairs.
Active Sitting Dynamics
Unlike rigid seating that locks you into a single posture, the HKM-140371 encourages micro-movements throughout the day. This concept — known in ergonomic research as "dynamic sitting" — promotes circulation, engages core musculature, and helps prevent the stiffness associated with static postural fixation.
Material Excellence

Premium Black Leather Craftsmanship

A tactile and visual statement of quality that endures.

Genuine Leather Surface
The high-quality black leather upholstery offers a supple, breathable touch that resists cracking and peeling. Its natural grain pattern ensures each chair has a subtly unique character while maintaining a uniformly professional appearance.
Timeless Aesthetic
The deep black finish integrates effortlessly into any interior design language — from minimalist modern offices to traditional executive suites — creating a cohesive, polished environment that speaks to attention to detail.
Low-Maintenance Durability
The leather surface is treated with a protective finish that resists spills, stains, and daily wear. Routine care requires only a gentle wipe with a damp cloth, preserving the chair's pristine condition with minimal effort.
Temperature-Regulating Comfort
Unlike synthetic materials that trap heat, the leather adapts to ambient temperature — feeling cool in summer and warming gradually in winter — ensuring consistent comfort regardless of seasonal changes.
Personalization

Adaptive Ergonomics at Your Fingertips

Fine-tune your seating geometry for a truly individualized experience.

Height Adjustment
A premium gas-lift mechanism enables smooth, stepless seat height modification — allowing users of varying statures to achieve the optimal thigh-to-floor angle for proper circulation.
18.1 – 21.7 in (46 – 55 cm)
Tilt & Recline
Adjustable backrest angle with tension control lets you recline comfortably during reflective pauses or lock into an upright position for focused, task-intensive work sessions.
95° – 125° recline range
360° Swivel Mobility
Effortless rotation eliminates the need to twist or overreach when accessing peripheral equipment, filing cabinets, or engaging with colleagues — reducing cumulative spinal torque throughout the day.
Stable 5-Star Base
A reinforced five-point base with smooth-rolling casters provides a wide stability footprint. The casters glide quietly across hardwood, tile, and low-pile carpet without marking or scuffing.
Industry Insight

Understanding Ergonomic Seating Standards

What separates a truly ergonomic chair from an ordinary one — and why it matters for your long-term health.

The discipline of occupational ergonomics has established clear criteria for seating that supports the human body during prolonged desk work. Key principles include lumbar lordosis preservation (maintaining the lower back's natural inward curve), ischial weight distribution (shifting pressure from the sitting bones across a broader surface), and dynamic postural facilitation (enabling subtle, frequent position changes).

The HKM-140371 incorporates all three pillars. Its high backrest reinforces the lumbar curve at the anatomically correct height — approximately 7 to 10 inches (18 to 25 cm) above the seat surface — while the waterfall-edge seat front reduces popliteal compression behind the knees, a common contributor to leg fatigue and circulatory restriction.

Industry guidelines such as those published by the Occupational Safety and Health Administration (OSHA) and the Human Factors and Ergonomics Society (HFES) consistently emphasize adjustability as the single most critical feature of any task chair. A chair that cannot adapt to the user's unique anthropometry — regardless of how well-cushioned or aesthetically pleasing — fundamentally fails its ergonomic mandate. The HKM-140371 addresses this with multi-axis adjustability that accommodates a broad user demographic.

Designed for the Modern Professional

One chair, multiple environments — seamlessly adapting to how and where you work.

Executive Office
Command presence in the boardroom with a silhouette that conveys authority and discernment. The black leather finish complements wood, glass, and metal interiors alike.
Home Workspace
Elevate your remote office with a chair that bridges the gap between professional-grade ergonomics and residential aesthetic compatibility.
Creative Studios
For designers, developers, and content creators who need a reliable foundation during marathon creative sessions — comfort that keeps pace with inspiration.
Specifications

Technical Specifications

Detailed product parameters for informed decision-making.

Overall Height
46.5 – 50.0 in
118 – 127 cm
Seat Width
20.5 in
52 cm
Weight Capacity
300 lbs
136 kg
Net Weight
48 lbs
22 kg
Backrest Height
29 in
74 cm
Seat Depth
19.3 in
49 cm
Material
Leather
Premium Grade
Color
Black
Deep Matte Finish
Support

Frequently Asked Questions

Quick answers to common inquiries about the HKM-140371.

What body dimensions does this chair best accommodate?
The HKM-140371 is designed to accommodate a broad range of users. The seat height adjusts from approximately 18.1 to 21.7 inches (46 to 55 cm), making it suitable for individuals roughly between 5 ft 2 in and 6 ft 4 in (157 to 193 cm) in height. The high backrest provides full spinal support for users within this range, with the lumbar contour positioned to align with the natural curve of the lower back. The weight capacity is rated at 300 lbs (136 kg), supported by a robust gas-lift cylinder and reinforced five-star base.
How should I clean and maintain the leather upholstery?
Routine maintenance is straightforward. For daily care, dust the surface with a soft, dry microfiber cloth. For occasional deeper cleaning, use a slightly damp cloth with mild soap, then immediately dry with a clean towel. Avoid harsh chemical cleaners, solvents, or abrasive pads, as these can degrade the leather's protective finish. We recommend applying a quality leather conditioner every 4 to 6 months to preserve suppleness and prevent cracking. Keep the chair away from direct sunlight and heat sources to maintain color integrity.
Does the chair require assembly upon delivery?
Yes, the HKM-140371 ships in a single carton with all components, hardware, and an illustrated assembly guide included. Assembly is designed to be intuitive and typically takes 20 to 30 minutes for one person. The primary steps involve attaching the five-star base to the gas cylinder, securing the seat mechanism, and mounting the backrest. All necessary tools are provided in the package. No specialized skills are required — simply follow the step-by-step instructions.
Is the gas cylinder certified for safety?
Absolutely. The gas-lift cylinder used in the HKM-140371 meets Class 3 certification standards, which is the industry benchmark for office chair pneumatic components. It has undergone rigorous fatigue testing and burst-pressure verification to ensure reliable, long-term performance. The mechanism is fully enclosed within the chair's telescopic cover, providing both safety shielding and a clean aesthetic appearance.
Can this chair be used on hardwood floors without causing damage?
Yes. The HKM-140371 is equipped with smooth-rolling polyurethane casters that are specifically designed to be floor-friendly. They glide quietly across hardwood, laminate, tile, and low-pile carpeted surfaces without scratching, scuffing, or leaving marks. For added protection on particularly delicate flooring, a chair mat can be used, though it is not strictly necessary under normal usage conditions.
What distinguishes this chair from budget office chairs in terms of long-term value?
The primary differentiators are material integrity, structural durability, and ergonomic precision. Budget chairs often use bonded leather or low-grade synthetics that peel within months; the HKM-140371 employs high-quality leather with a protective treatment for sustained appearance. The internal frame is constructed from reinforced steel and dense molded foam that resists deformation over time — whereas economy chairs frequently develop sagging cushions and compromised lumbar support after a year of daily use. Additionally, the gas cylinder and tilt mechanism are built to higher tolerances, ensuring consistent performance far beyond the lifespan of entry-level alternatives.

Purchase with Confidence

Free Shipping on All Orders
Complimentary delivery to your doorstep with no minimum purchase requirement. Every order ships at no additional cost.
180-Day Purchase Protection
Extended coverage against manufacturing defects for a full six months after delivery — double the industry standard.
30-Day Money-Back Guarantee
Not completely satisfied? Return the chair within 30 days for a full refund — no questions asked, no restocking fees.
24-Month Warranty Service
Comprehensive two-year warranty covering all mechanical components, materials, and workmanship for complete peace of mind.

The HKM-140371 Ergonomic Black Leather High Back Executive Swivel Office Chair — where meticulous engineering, premium materials, and refined design converge to redefine your daily seating experience.

Every product we offer includes a 180-day purchase protection plan at no additional cost. This coverage extends beyond a standard warranty, reflecting our confidence in product quality and our ongoing commitment to your satisfaction.

The protection plan is designed to provide practical help in real-world situations. Whether you encounter a manufacturing issue, a performance problem, or an unexpected accident, our team is ready to assist with clear, fair solutions.

What Is Covered

Manufacturing Defects

We replace items with material or workmanship flaws at no charge.

Performance Failures

Free repair or replacement if the product fails under normal use.

Accidental Damage

One-time courtesy replacement at a reduced price.

Zero Hidden Fees

All shipping costs for replacements and returns are covered.

How to File a Claim

1
Contact Us
Reach out with your order number and a brief description of the issue.
2
Quick Review
Our team evaluates your claim fairly and efficiently.
3
Resolution
Most claims are resolved within 48 hours.
4
Replacement/Repair
We repair or replace your item free of charge.

How This Differs from the Warranty

The 180-day purchase protection includes accidental damage and performance failures that are typically not covered by a standard warranty. It provides an additional layer of support during the first six months after purchase, giving you greater confidence and peace of mind.

Please Note: During the 180-day protection period, we cover all shipping costs for replacements and returns. There are no hidden fees.

We want you to be completely satisfied with your purchase. If for any reason you are not fully happy, you may return your item within 30 days of delivery for a full refund. No lengthy forms, no unnecessary questions.

Our return policy is built on a simple principle: if the product is not right for you, we will make it right. We understand that online shopping involves trust, and we work hard to earn that trust with every order.

Return Eligibility

30-Day Window

Request a return within 30 days of delivery.

Original Condition

Unworn or unused, with tags and original packaging.

Proof of Purchase

A receipt or order number is required.

Fast Refund

Refund processed within 10 business days.

How to Start a Return

1
Contact Us
Email info@hekomart.com to request a return.
2
Receive a Prepaid Label
We send you a return shipping label at no cost.
3
Ship the Item
Send it to: 3401 Dale Rd, Modesto, CA 95356.
4
Receive Your Refund
Processed within 10 business days after approval.

Returns & Exchanges Overview

Countries ServedUnited States
Returns AcceptedDefective & non-defective
ExchangesAccepted
Product ConditionNew only
Return Window30 days
Return MethodIn store, by mail
Return LabelIncluded, free
Restocking FeesNone
Refund Processing Time10 business days

Damages & Exchanges

Please inspect your order as soon as it arrives. If the item is defective, damaged, or incorrect, contact us immediately so we can evaluate the issue and make it right. For exchanges, the fastest option is to return the original item and place a new order for the replacement.

Refund Reminder: Once approved, refunds are processed within 10 business days. The time it takes for the funds to appear in your account may vary by bank.

We believe in the quality of our products, and we want you to share that confidence. Every product is backed by a 24-month warranty covering all structural and functional components, including zippers, buckles, straps, and fabric integrity.

The warranty is designed to be simple and accessible. You only need your proof of purchase to begin a claim, and our team will assess the issue promptly. If a manufacturing issue arises, we will make it right.

What the Warranty Covers

Comprehensive Coverage

Every part warranted for two full years.

Free Repair or Replacement

Whichever is faster, at no cost to you.

Quick Turnaround

Claims assessed within 1 business day.

Transferable

Warranty follows the product, not the owner.

How to File a Warranty Claim

1
Contact Support
Send us a message with your proof of purchase.
2
Assessment
Claims typically assessed within 1 business day.
3
Repair or Replacement
We repair at no charge or ship a new one.
4
Enjoy
Your product is back in proper working order.
Good to Know: Our warranty process is simple and straightforward. You only need your proof of purchase to get started.

Every order ships free—no minimums, no hidden fees. We currently deliver across the United States and are actively working to expand to more countries. We partner with reliable U.S. courier services to ensure your order arrives safely and on time.

Our delivery process is designed for transparency. From the moment you place your order to the moment it reaches your door, you receive clear updates at every stage. We carefully inspect each product before dispatch, and we provide tracking information as soon as your order ships.

Our U.S. Shipping Partners

USPS

Official national carrier with nationwide coverage.

UPS

Fast and reliable ground and express shipping.

FedEx

Express delivery with real-time tracking.

DHL eCommerce

Efficient parcel delivery for e-commerce shipments.

Delivery Process

1
Order Placed
Your order is confirmed and entered into our system.
2
Processing & Quality Check
Handling time: 0–1 business days (Mon–Fri).
3
Shipping Transit
Transit time: 2–5 business days (Mon–Fri).
4
Delivered
Your package arrives with full tracking.

Delivery Time Summary

Handling Time0–1 business days
Transit Time2–5 business days
Order Cut-Off Time05:00 PM EST
Shipping CostFree on all orders

Cancellations & Taxes

You may cancel your order at any time before it ships. All product prices include applicable taxes, and there are no additional VAT or customs fees for orders delivered within the United States.

Please Note: All products go through a short handling process before shipping, which is why there is a brief processing time on orders. We appreciate your patience.

Whether you have a question, need help with an order, or just want some advice, our support team is available around the clock. We don't just respond to messages—we work with you to find real solutions that fit your needs.

Our support specialists are trained to handle a wide range of requests, from product recommendations to technical troubleshooting. No matter the question, you can expect a professional and friendly response.

How We Can Help

Product Guidance

Our experts help you choose the right product.

Order Assistance

Modify orders, track shipments, or speed up delivery.

Warranty & Returns

Start claims or returns quickly and easily.

Technical Troubleshooting

Step-by-step solutions for product issues.

Contact Information

24/7 Phone

+1 (209) 280-3200

Email

support@hekomart.com

Address

3401 Dale Rd, Modesto, CA 95356

Support Hours

Available 24 hours a day, 7 days a week

Response Time

Standard Business HoursUsually within 30 minutes
Outside Business HoursWithin 2 hours

Send Us a Message

We usually respond within 30 minutes during business hours.

Thank you! Your message has been sent. We'll reply within 30 minutes during business hours.
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