Humism Rhizome HeliosvsHumism Kato Helios
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Measurements
Catalog photos are all shot at the same flattering size. These aren't: every case below shares one millimeter scale.

Rhizome Helios

Kato Helios
Diameter
39mm
39mm
Thickness
11.4mm
11.4mm
Water Resistance
50m
50m
MSRP
$428
$428
Movement
Seiko NH35
Seiko NH35
These watches are spec-identical
Every spec we track matches across all 2 watches: likely dial-color variants of the same model. Toggle “Show only differences” off to see the full sheet.
Reviews
Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.
Owners widely praise the Humism Rhizome / HELIOS for its unique artistic dial, described as mesmerizing and a statement piece that garners interest, and the reliable Seiko NH35 automatic movement. The 39mm case size and packaging are also noted positively, with one owner finding the dial surprisingly easy to read and suitable for office wear. However, reading the time can be challenging for some, and the watch lacks lume, leading to impracticality as a sole timepiece for certain users. There is also a desire for a higher beat rate movement for a smoother seconds sweep. Overall, owners rate the Humism Rhizome / HELIOS highly for its visually engaging and artistic design at its price point.
Owners widely praise the Humism Kato / HELIOS for its unique kinetic art dial, with reviewers noting the rotating dots are surprisingly easy to read despite the artistic concept taking precedence over pure practicality. The 39mm steel case is described as well-made with a brushed finish and sapphire crystals, and the Seiko NH35 automatic movement is considered reliable. Some owners find the watch to be a fun conversation piece and appreciate the levitating indices and decorated movement. However, one owner reported the watch stopped working after some time, and another described the included strap as poor quality and ill-fitting. Overall, owners and reviewers consider the Humism Kato / HELIOS a strong value proposition for its unique design and features at its price point.
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