OM5 Series


The OM5 Series® is the peak of ergonomic office chair design. Designed by award winning designer Francisco Romero, the OM5 combines chic style and revolutionary ergonomic technology.

The OM5 features a self weighing mechanism which allows the chair to intuitively respond to the user's natural movements without the need for constant manual adjustments.

Office Master's OM5 Series® was designed with elegant simplicity in mind.

In 2015 PC Gamer Magazine rated the OM5 as the best PC gaming chair on the market: Recommended PC Gaming Chairs on PCGamer.com

The OM5 was positively reviewed by Linus Tech Tips, who loved the simple adjustments and intuitive motion-activated lean.

 

How it Works


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There is no tension knob or traditional back angle lock necessary. The specifically calibrated geometry of the OM5 does the work of balancing your body's weight throughout the chair's recline.

 

Simply lean back using your hips, and rest your back at any position without the need for a locking paddle. And when you want to move again, just move.

My skepticism didn’t last long, though, because when it comes to the OM5, sitting is believing.
— Tim Clark (PC Gamer Magazine)

Viewing angle shifts only slightly when reclined, promoting natural movement and comfortable working in a variety of postures.

 

Arm pad slides forward while in recline, but does not interfere with the desk.

 

The seat slides forward while the upper body leans back, keeping you close to your work even when you recline.

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The OM5 was named the best new ergonomic seating design at the National Ergonomics Conference in 2010 & 2013

 

 

True Ergonomic Design 

This award winning chair features a revolutionary self weighing mechanism that consists of 5 roller wheels. These wheels distribute the user's weight evenly throughout the entire reclining motion, allowing for an non locking design. 

Traditional ergonomic office chairs have between 3-6 adjustments, while the OM5 requires only one. This simplified design ensures the user is in an ergonomically optimal seating position at all times. 

 

Customize Your OM5


Chair Size

OM5 Standard [Mid Back ]

OM5 Standard

[Mid Back ]

OM5 Standard - mid back

OM5 Executive [High Back ]

OM5 Executive

[High Back ]

OM5 Executive - high back

OM5 XT ( Extra Tall ) [ High Back, Long Seat, Sits Higher ]

OM5 XT ( Extra Tall )

[ High Back, Long Seat, Sits Higher ]

OM5 XT - high back, long seat, sits higher

Polyflex Back Colors

Black

Black

Gray

Gray

White

White

 

Frame Colors

Black

Black

Gray

Gray

Optional Back Mesh Cover

Available in 11 different colors

Available in 11 different colors

Height adjustable only

Height adjustable only

Standard OM5 arms

Height adjustable only

Pivoting/sliding

Pivoting/sliding

RP45 arms

Pivoting/sliding armpads

Pivoting/sliding with button lock

Pivoting/sliding with button lock

RP65 arms

Pivoting/sliding armpads

Maximum mobility pivoting/sliding

Maximum mobility pivoting/sliding

RP50 arms

Maximum mobility pads

 
 

OM5 Resources


OM5 and OM5 Active Brochure (2013) View - Download

OM5 Brochure (2011) View - Download

OM5 Spec Sheet View - Download

OM5 XT Spec Sheet View - Download

OM5 Ergonomic Features View - Download

OM5 - How it Works training sheet View - Download

OM5 Adjustment and Cleaning Tips View - Download

Press Release - OM5 Wins Attendees Choice Award at Ergo Expo 2010 View - Download

Specs and more at Office Master's OM5 page