Side by side

Fears Onyx (collective Horology)vsSpinnaker Dumas GMT

The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.

Onyx (collective Horology)
FearsOnyx (collective Horology)
MSRP $2,833
Dumas GMT
SpinnakerDumas GMT
MSRP $399

At a glance

10 of 29 specs differ
Diameter
Onyx (collective Horology)39.5mm
Dumas GMT44mm
Power Reserve
Onyx (collective Horology)40h
Dumas GMT40h
Water Resistance
Onyx (collective Horology)15m
Dumas GMT300m
MSRP
Onyx (collective Horology)$2,833
Dumas GMT$399

Full specifications

Case

6 specs
Category
Sport
GMT
Diameter
39.5mm
44mm
Thickness
20mm
15mm
Lug-to-Lug
46.95mm
48mm
Lug Width
20mm
22mm
Water Resistance
15m
300m

Crystal & Dial

2 specs
Crystal
Domed Sapphire
Sapphire
Dial Color
Onyx (Collective Horology)
Blue

Movement

1 specs
Caliber
La Joux-Perret G101
Seiko NH34A

Pricing

1 specs
MSRP
$2,833
$399

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What people say

Owners + reviewers, side by side

Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.

Fears Onyx (collective Horology)

Owners widely praise the Fears Onyx (collective Horology) for its exquisite glossy black onyx dial, which displays microscopic striations under magnification. Reviewers note its thin case, under 10.5mm, and a balanced sporty-dressy aesthetic. Water resistance is rated at 150m by one source and 100m by another, and the bracelet features on-the-fly micro-adjustment. Some owners find the 39.5mm diameter slightly large for the style, and one source suggests it doesn't represent top value, though it remains competitive. Overall, owners rate the Fears Onyx highly for its unique stone dial and wearability.

Spinnaker Dumas GMT

Owners praise the Spinnaker Dumas GMT's satisfying lume, including on the crown, and good finishing, with one owner finding it wears well on a 17cm wrist. The watch features a Seiko NH34A GMT movement and a blue gradient dial. Reviewers note its 44mm diameter and 209g weight on the bracelet make it unsuitable for smaller wrists.

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