Side by side

Spinnaker Dumas GMTvsStudio Underd0g Desert Sky (Gen3)

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

Dumas GMT
SpinnakerDumas GMT
MSRP $399
Desert Sky (Gen3)
Studio Underd0gDesert Sky (Gen3)
MSRP $550

At a glance

10 of 29 specs differ
Diameter
Dumas GMT44mm
Desert Sky (Gen3)38.5mm
Power Reserve
Dumas GMT40h
Desert Sky (Gen3)40h
Water Resistance
Dumas GMT300m
Desert Sky (Gen3)
MSRP
Dumas GMT$399
Desert Sky (Gen3)$550

Full specifications

Case

7 specs
Category
GMT
Chronograph
Diameter
44mm
38.5mm
Thickness
15mm
Lug-to-Lug
48mm
Lug Width
22mm
Material
316L Stainless Steel
Stainless Steel
Water Resistance
300m

Crystal & Dial

1 specs
Dial Color
Blue
Standard

Movement

1 specs
Caliber
Seiko NH34A

Pricing

1 specs
MSRP
$399
$550

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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.

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.

Studio Underd0g Desert Sky (Gen3)

Owners widely praise the Studio Underd0g Desert Sky (Gen3) for its vibrant blue dial that exhibits depth and liveliness under varying light, its fun and creative design, and its value as a mechanical chronograph. The Seagull 1901 movement provides column-wheel chronograph functionality, with one owner reporting accuracy around +6 seconds per day and satisfying chronograph pusher feel. However, the watch is criticized for a highly reflective, overly domed crystal and weak lume. Some owners find the 13.6mm thickness to be substantial. On balance, owners rate the Studio Underd0g Desert Sky (Gen3) highly for its engaging dial and value proposition as a mechanical chronograph.

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