Spinnaker Dumas GMTvsGruppo Gamma Field III GMT Date
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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.
Dumas GMT
Field III GMT Date
Diameter
44mm
40mm
Lug-to-Lug
48mm
lowest
48.5mm
Thickness
15mm
14mm
lowest
Water Resistance
300m
highest
200m
Power Reserve
n/a
41h
MSRP
$399
lowest
$459
Movement
Seiko NH34
Seiko NH34
Case
5 specsCrystal & Dial
3 specsMovement
2 specsPricing
1 specsReviews
Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.
The Spinnaker Dumas GMT is praised for its good finishing and satisfying lume, including on the crown. Owners note its 44mm case and 15mm thickness, with one finding it wears well on a 17cm wrist, while a reviewer suggests its substantial size and 209g weight make it unsuitable for smaller wrists. Overall, owners and reviewers find the Spinnaker Dumas GMT offers good value, particularly with the inclusion of an extra rubber strap.
The Spinnaker Dumas GMT offers robust build quality for its price point. Reviewers noted the 300-meter water resistance.
Owners widely praise the Gruppo Gamma Field III GMT Date for its incredible quality, awesome looks, and good value for the price. The watch features a 40mm brushed 316L stainless steel case, a box sapphire crystal, and a Seiko NH34 automatic movement. Some owners note accuracy figures ranging from -20 to +40 seconds per day, while others report +5 seconds per day. One user found the 40mm size unsuitable for small wrists. Overall, owners rate the Gruppo Gamma Field III GMT Date highly for its build quality and aesthetic appeal at its price point.
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