Side by side

Gruppo Gamma Vanguard WeatheredvsSpinnaker Dumas GMT

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

Vanguard Weathered
Gruppo GammaVanguard Weathered
MSRP $790
Dumas GMT
SpinnakerDumas GMT
MSRP $399

At a glance

13 of 29 specs differ
Diameter
Vanguard Weathered42mm
Dumas GMT44mm
Power Reserve
Vanguard Weathered42h
Dumas GMT40h
Water Resistance
Vanguard Weathered100m
Dumas GMT300m
MSRP
Vanguard Weathered$790
Dumas GMT$399

Full specifications

Case

7 specs
Category
GMT
Diameter
42mm
44mm
Thickness
12.6mm
15mm
Lug-to-Lug
49.5mm
48mm
Material
Stainless Steel
316L Stainless Steel
Finish
Weathered
Brushed and polished
Water Resistance
100m
300m

Crystal & Dial

3 specs
AR Coating
Yes
Inner
Dial Color
Forged Carbon
Blue
Lume
Super-LumiNova
None

Movement

2 specs
Caliber
Miyota 9039
Seiko NH34A
Power Reserve
42h
40h

Pricing

1 specs
MSRP
$790
$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.

Gruppo Gamma Vanguard Weathered

The satin-finished steel case is well-executed and aesthetically pleasing. The watch's lumières de nuit are not particularly bright, which might be a drawback for some users. Reviewers disagree on the watch's originality, with one reviewer finding it pleasing in-person and another describing it as decidedly derivative.

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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