Side by side

Spinnaker Bradner GMTvsGruppo Gamma Field III GMT Date

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

Bradner GMT
SpinnakerBradner GMT
MSRP $299
Field III GMT Date
Gruppo GammaField III GMT Date
MSRP $459

At a glance

12 of 29 specs differ
Diameter
Bradner GMT42mm
Field III GMT Date40mm
Power Reserve
Bradner GMT40h
Field III GMT Date41h
Water Resistance
Bradner GMT180m
Field III GMT Date200m
MSRP
Bradner GMT$299
Field III GMT Date$459

Full specifications

Case

5 specs
Diameter
42mm
40mm
Thickness
15mm
14mm
Lug-to-Lug
50mm
48.5mm
Material
316L Stainless Steel
Stainless Steel
Water Resistance
180m
200m

Crystal & Dial

3 specs
AR Coating
Inner
Yes
Dial Color
Brown
Black
Lume
None
Super-LumiNova

Movement

3 specs
Caliber
Seiko NH34A
Seiko Instruments NH38A
Power Reserve
40h
41h
Complications
None
GMT, Date

Pricing

1 specs
MSRP
$299
$459

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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 Bradner GMT

The Spinnaker Bradner GMT is praised for its awesome lume and comfortable wearability, with one owner noting the rubber strap is very comfortable and the beads of rice bracelet fits well on smaller wrists. Some find its 15mm thickness and bold colorway may not appeal to everyone, and one owner views it as more of a casual GMT with tool-watch styling than a diver. Overall, owners rate the Spinnaker Bradner GMT highly for its value and comfortable wearability.

Gruppo Gamma Field III GMT Date

Owners widely praise the Gruppo Gamma Field III GMT Date for its awesome looks, quality, and good value. The watch features a 40mm brushed 316L stainless steel case, box sapphire crystal, and 200m water resistance, powered by a Seiko NH34A movement. Some reviewers note the NH34A movement's accuracy can range from -20~+40 seconds per day, though one reviewer reported +5 seconds per day with a regulated movement. The dial's dense layout with Arabic numerals can be overwhelming for some, and one owner found the size unsuitable for smaller wrists. On balance, owners rate the Gruppo Gamma Field III GMT Date highly for its impressive finishing and toolish design at its price point.

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