Side by side

Spinnaker Dumas GMTvsUndone Basecamp Stealth Leather

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

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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.

From video reviewers

The Spinnaker Dumas GMT offers robust build quality for its price point. Reviewers noted the 300-meter water resistance.

Undone Basecamp Stealth Leather

The Undone Basecamp Stealth Leather is a 40mm tool watch featuring a bidirectional bezel and a Seiko NH34 automatic movement. Owners report it keeps great time, with one noting approximately 20 seconds deviation over a week. Some users experience ghost date-setting in the first position, which is a minor annoyance for some. Overall, owners rate the Undone Basecamp Stealth Leather highly for its reliable Seiko movement and excellent timekeeping.

At a glance

11 of 29 specs differ
Diameter
Dumas GMT44mm
Basecamp Stealth Leather40mm
Power Reserve
Dumas GMT
Basecamp Stealth Leather
Water Resistance
Dumas GMT300m
Basecamp Stealth Leather100m
MSRP
Dumas GMT$399
Basecamp Stealth Leather$360

Full specifications

Case

7 specs
Category
GMT
Diameter
44mm
40mm
Thickness
15mm
0mm
Lug-to-Lug
48mm
0mm
Lug Width
22mm
0mm
Material
316L Stainless Steel
Stainless Steel
Water Resistance
300m
100m

Crystal & Dial

2 specs
Crystal
Sapphire
Dial Color
Blue

Movement

1 specs
Power Reserve
0h

Pricing

1 specs
MSRP
$399
$360
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